posix.mak: Enforce whitespace before opening parenthesis for version conditions

std/exception.d

@@ -554,7 +554,7 @@ private void bailOut(E : Throwable = Exception)(string file, size_t line, scope
             enum expect =
                 (BodySafe || !EncloseSafe) && (!EnclosePure || BodyPure);
 
-            version(none)
+            version (none)
             pragma(msg, "safe = ", EncloseSafe?1:0, "/", BodySafe?1:0, ", ",
                         "pure = ", EnclosePure?1:0, "/", BodyPure?1:0, ", ",
                         "expect = ", expect?"OK":"NG", ", ",
@@ -1309,7 +1309,7 @@ bool mayPointTo(S, T)(auto ref const shared S source, ref const shared T target)
 }
 
 
-version(unittest)
+version (unittest)
 {
     // 17084 : the bug doesn't happen if these declarations are
     // in the unittest block (static or not).
@@ -1850,7 +1850,7 @@ expression.
     static assert(!__traits(compiles, (new Object()).ifThrown(e=>1)));
 }
 
-version(unittest) package
+version (unittest) package
 void assertCTFEable(alias dg)()
 {
     static assert({ cast(void) dg(); return true; }());