Alphabetize some target_os configurations

Author: wginolas

src/sys/aio.rs

@@ -19,9 +19,13 @@ libc_enum! {
         /// do it like `fsync`
         O_SYNC,
         /// on supported operating systems only, do it like `fdatasync`
-        #[cfg(any(target_os = "openbsd", target_os = "bitrig",
-                target_os = "netbsd", target_os = "macos", target_os = "ios",
-                target_os = "linux"))]
+        #[cfg(any(
+            target_os = "bitrig",
+            target_os = "ios",
+            target_os = "linux",
+            target_os = "macos",
+            target_os = "netbsd",
+            target_os = "openbsd"))]
         O_DSYNC
     }
 }

src/sys/event.rs

@@ -59,7 +59,7 @@ libc_enum! {
                   target_os = "ios",
                   target_os = "macos"))]
         EVFILT_USER,
-        #[cfg(any(target_os = "macos", target_os = "ios"))]
+        #[cfg(any(target_os = "ios", target_os = "macos"))]
         EVFILT_VM,
         EVFILT_VNODE,
         EVFILT_WRITE,

src/sys/signal.rs

@@ -33,7 +33,9 @@ libc_enum!{
         SIGPIPE,
         SIGALRM,
         SIGTERM,
-        #[cfg(all(any(target_os = "linux", target_os = "android", target_os = "emscripten"), not(any(target_arch = "mips", target_arch = "mips64"))))]
+        #[cfg(all(
+            any(target_os = "android", target_os = "emscripten", target_os = "linux"), 
+            not(any(target_arch = "mips", target_arch = "mips64"))))]
         SIGSTKFLT,
         SIGCHLD,
         SIGCONT,
@@ -48,12 +50,12 @@ libc_enum!{
         SIGPROF,
         SIGWINCH,
         SIGIO,
-        #[cfg(any(target_os = "linux", target_os = "android", target_os = "emscripten"))]
+        #[cfg(any(target_os = "android", target_os = "emscripten", target_os = "linux"))]
         SIGPWR,
         SIGSYS,
-        #[cfg(not(any(target_os = "linux", target_os = "android", target_os = "emscripten")))]
+        #[cfg(not(any(target_os = "android", target_os = "emscripten", target_os = "linux")))]
         SIGEMT,
-        #[cfg(not(any(target_os = "linux", target_os = "android", target_os = "emscripten")))]
+        #[cfg(not(any(target_os = "android", target_os = "emscripten", target_os = "linux")))]
         SIGINFO,
     }
 }