Minor fixes

Sources/Basic/KeyedPair.swift

@@ -17,7 +17,7 @@
 /// Example:
 ///
 ///     struct Airport {
-///         // The name of the aiport.
+///         // The name of the airport.
 ///         let name: String
 ///         // The names of destination airports for outgoing flights.
 ///         let destinations: [String]

Sources/Basic/OutputByteStream.swift

@@ -131,7 +131,7 @@ public class OutputByteStream: TextOutputStream {
             }
 
             let writeUptoIndex = bytes.index(bytes.startIndex, offsetBy: availableBufferSize)
-            // Append whatever we can accomodate.
+            // Append whatever we can accommodate.
             buffer += bytes.prefix(upTo: writeUptoIndex)
 
             writeImpl(buffer)

Sources/Basic/Path.swift

@@ -334,7 +334,7 @@ public func ==(lhs: RelativePath, rhs: RelativePath) -> Bool {
 /// Make relative paths CustomStringConvertible.
 extension RelativePath : CustomStringConvertible {
     public var description: String {
-        // FIXME: We should realy be escaping backslashes and quotes here.
+        // FIXME: We should really be escaping backslashes and quotes here.
         return "<RelativePath:\"\(asString)\">"
     }
 }

Sources/Basic/TemporaryFile.swift

@@ -78,7 +78,7 @@ public final class TemporaryFile {
     /// goes out of scope.
     ///
     /// - Parameters:
-    ///     - dir: If specified the temporary file will be created in this directory otherwise enviornment variables
+    ///     - dir: If specified the temporary file will be created in this directory otherwise environment variables
     ///            TMPDIR, TEMP and TMP will be checked for a value (in that order). If none of the env variables are
     ///            set, dir will be set to `/tmp/`.
     ///     - prefix: The prefix to the temporary file name.
@@ -170,7 +170,7 @@ public final class TemporaryDirectory {
     /// Creates a temporary directory which is automatically removed when the object of this class goes out of scope.
     ///
     /// - Parameters:
-    ///     - dir: If specified the temporary directory will be created in this directory otherwise enviornment variables
+    ///     - dir: If specified the temporary directory will be created in this directory otherwise environment variables
     ///            TMPDIR, TEMP and TMP will be checked for a value (in that order). If none of the env variables are
     ///            set, dir will be set to `/tmp/`.
     ///     - prefix: The prefix to the temporary file name.

Sources/Basic/TerminalController.swift

@@ -73,7 +73,7 @@ public final class TerminalController {
     ///
     /// - Returns: Current width of terminal if it was determinable.
     public static func terminalWidth() -> Int? {
-        // Try to get from enviornment.
+        // Try to get from environment.
         if let columns = POSIX.getenv("COLUMNS"), let width = Int(columns) {
             return width
         }

Sources/Commands/SwiftTestTool.swift

@@ -289,7 +289,7 @@ public struct SwiftTestTool: SwiftTool {
       #endif
 
         // Execute the XCTest with inherited environment as it is convenient to pass senstive
-        // information like username, password etc to test cases via enviornment variables.
+        // information like username, password etc to test cases via environment variables.
         let result: Void? = try? system(args, environment: ProcessInfo.processInfo.environment)
         return result != nil
     }
@@ -306,7 +306,7 @@ public struct SwiftTestTool: SwiftTool {
         if isFile(maybePath) {
             return maybePath
         }
-        // This will be true during swiftpm developement.
+        // This will be true during swiftpm development.
         // FIXME: Factor all of the development-time resource location stuff into a common place.
         let path = binDirectory.appending(component: xctestHelperBin)
         if isFile(path) {

Sources/TestSupport/SwiftPMProduct.swift

@@ -57,7 +57,7 @@ public enum SwiftPMProduct {
     ///
     /// - Parameters:
     ///         - args: The arguments to pass.
-    ///         - env: Enviroment variables to pass. Enviroment will never be inherited.
+    ///         - env: Environment variables to pass. Environment will never be inherited.
     ///         - chdir: Adds argument `--chdir <path>` if not nil.
     ///         - printIfError: Print the output on non-zero exit.
     ///

Sources/Utility/PkgConfig.swift

@@ -44,7 +44,7 @@ public struct PkgConfig {
 
     /// The built-in search path list.
     ///
-    /// By default, this is combined with the search paths infered from
+    /// By default, this is combined with the search paths inferred from
     /// `pkg-config` itself.
     private static let searchPaths = [
         AbsolutePath("/usr/local/lib/pkgconfig"),
@@ -185,7 +185,7 @@ struct PkgConfigParser {
             return depString.characters[depString.characters.index(depString.characters.startIndex, offsetBy: idx)]
         }
 
-        // This converts the string which can be seperated by comma or spaces
+        // This converts the string which can be separated by comma or spaces
         // into an array of string.
         func tokenize() -> [String] {
             var tokens = [String]()

Tests/BasicTests/KeyedPairTests.swift

@@ -15,7 +15,7 @@ import Basic
 class KeyedPairTests: XCTestCase {
     func testBasics() {
         class Airport {
-            // The name of the aiport.
+            // The name of the airport.
             let name: String
             // The destination airports for outgoing flights.
             var destinations: [Airport] = []

Tests/BasicTests/TemporaryFileTests.swift

@@ -33,7 +33,7 @@ class TemporaryFileTests: XCTestCase {
             stream <<< "baz"
             try fputs(stream.bytes.contents, file.fileHandle)
 
-            // Go to the begining of the file.
+            // Go to the beginning of the file.
             file.fileHandle.seek(toFileOffset: 0)
             // Read the contents.
             let contents = try? file.fileHandle.readFileContents()

Utilities/bootstrap

@@ -591,7 +591,7 @@ def process_runtime_libraries(build_path, args, bootstrap=False):
         # Unqoute any quoted characters.
         link_cmd = [arg.replace("\\", "") for arg in link_cmd]
 
-        # Drop any .o files, and the -Xlinker which preceeds '-shared'.
+        # Drop any .o files, and the -Xlinker which precedes '-shared'.
         try:
             idx = link_cmd.index("-shared")
         except: