Bugfix [#8328] Python scripts from user defined location doesn't load

http://projects.blender.org/tracker/index.php?func=detail&aid=8328&group_id=9&atid=125

last commit had mistakes but tested this to fix the bug.
- Cam

source/blender/blenlib/intern/fileops.c

@@ -119,6 +119,8 @@ void BLI_del_slash(char *string) {
 #endif
 			string[len-1] = '\0';
 			len--;
+		} else {
+			break;
 		}
 	}
 }

source/blender/python/BPY_menus.c

@@ -938,7 +938,7 @@ static int bpymenu_GetStatMTime( const char *name, int is_file, time_t * mtime )
 	struct stat st;
 	int result;
 
-#ifdef win32
+#ifdef WIN32
 	if (is_file) {
 		result = stat( name, &st );
 	} else {