tests: fix coding style

Author: gribozavr

test/Parse/ConditionalCompilation/x86_64PS4Target.swift

@@ -4,7 +4,7 @@
 #if os(FreeBSD)
 // This block should not parse.
 // os(FreeBSD) does not imply os(PS4)
-let i : Int = "Hello"
+let i: Int = "Hello"
 #endif
 
 #if arch(x86_64) && os(PS4) && _runtime(_Native) && _endian(little)