s/REQUIRE/REQUIRES

Author: DougGregor

validation-test/compiler_crashers/28474-unreachable-executed-at-swift-lib-ast-type-cpp-1325.swift

@@ -6,5 +6,5 @@
 // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 
 // RUN: not --crash %target-swift-frontend %s -emit-ir
-// REQUIRE: SR-3149
+// REQUIRES: SR-3149
 b<n([print{$0