Update check-spaces to remove false positive for timercmp macro

The timercmp macro uses triggers a "space between function name and
opening parentheses" warning for the check spaces script. Work around
this by simply disabling the check for all "functions" named 'op()'.

changes/checkSpaces

@@ -0,0 +1,5 @@
+   o Minor bugfixes:
+     - Prevent a false positive from the check-spaces script by disabling
+       the "whitespace between function name and (" check for functions
+       named 'op()'.
+

contrib/checkSpace.pl

@@ -97,7 +97,7 @@ for $fn (@ARGV) {
                 if ($1 ne "if" and $1 ne "while" and $1 ne "for" and
                     $1 ne "switch" and $1 ne "return" and $1 ne "int" and
                     $1 ne "elsif" and $1 ne "WINAPI" and $2 ne "WINAPI" and
-                    $1 ne "void" and $1 ne "__attribute__") {
+                    $1 ne "void" and $1 ne "__attribute__" and $1 ne "op") {
                     print "     fn ():$fn:$.\n";
                 }
             }