With NUL as a TOKEN_STOP, this code is more efficient

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1754544 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/server/util.c b/server/util.c
index 470f6c3..9fb31e4 100644
--- a/server/util.c
+++ b/server/util.c
@@ -1526,7 +1526,7 @@
     while (!string_end) {
         const unsigned char c = (unsigned char)*cur;
 
-        if (!TEST_CHAR(c, T_HTTP_TOKEN_STOP) && c != '\0') {
+        if (!TEST_CHAR(c, T_HTTP_TOKEN_STOP)) {
             /* Non-separator character; we are finished with leading
              * whitespace. We must never have encountered any trailing
              * whitespace before the delimiter (comma) */