Remove unnecessary strncpy in zip

This causes a warning on GCC 9 and is unnecessary to boot: We
only use "cwd" for the open_basedir check, so we can just as well
pass in the original string.

Author: nikic

ext/zip/php_zip.c

@@ -509,9 +509,9 @@ static char * php_zipobj_get_zip_comment(struct zip *za, int *len) /* {{{ */
 int php_zip_glob(char *pattern, int pattern_len, zend_long flags, zval *return_value) /* {{{ */
 {
 #ifdef HAVE_GLOB
-	char cwd[MAXPATHLEN];
 	int cwd_skip = 0;
 #ifdef ZTS
+	char cwd[MAXPATHLEN];
 	char work_pattern[MAXPATHLEN];
 	char *result;
 #endif
@@ -574,8 +574,7 @@ int php_zip_glob(char *pattern, int pattern_len, zend_long flags, zval *return_v
 
 	/* we assume that any glob pattern will match files from one directory only
 	   so checking the dirname of the first match should be sufficient */
-	strncpy(cwd, globbuf.gl_pathv[0], MAXPATHLEN);
-	if (ZIP_OPENBASEDIR_CHECKPATH(cwd)) {
+	if (ZIP_OPENBASEDIR_CHECKPATH(globbuf.gl_pathv[0])) {
 		return -1;
 	}