Make IS_ABSOLUTE_PATH use the IS_UNC_PATH macro rather then duplicate the

code in the IS_UNC_PATH macro.

TSRM/tsrm_virtual_cwd.h

@@ -57,10 +57,10 @@ typedef unsigned short mode_t;
  * to account for volume name that is unique to NetWare absolute paths
  */
 #define COPY_WHEN_ABSOLUTE(path) 2
-#define IS_ABSOLUTE_PATH(path, len) \
-	(len >= 2 && ((isalpha(path[0]) && path[1] == ':') || (IS_SLASH(path[0]) && IS_SLASH(path[1]))))
 #define IS_UNC_PATH(path, len) \
 	(len >= 2 && IS_SLASH(path[0]) && IS_SLASH(path[1]))
+#define IS_ABSOLUTE_PATH(path, len) \
+	(len >= 2 && ((isalpha(path[0]) && path[1] == ':') || IS_UNC_PATH(path, len)))
 
 #elif defined(NETWARE)
 #ifdef HAVE_DIRENT_H