[test] Fixing incorrectly capitalised regexps

Bug: 
Change-Id: I32faae50c786b67599a68840baad478ce81c1398
Reviewed-on: https://chromium-review.googlesource.com/663544Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Franziska Hinkelmann <franzih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47989}

test/mjsunit/third_party/regexp-pcre/regexp-pcre.js

@@ -899,7 +899,7 @@ res[819] = /:/;
 res[820] = /([\da-f:]+)$/i;
 res[821] = /^.*\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
 res[822] = /^(\d+)\s+IN\s+SOA\s+(\S+)\s+(\S+)\s*\(\s*$/;
-res[823] = /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-z\d\-]*)*\.$/;
+res[823] = /^[a-zA-Z\d][a-zA-Z\d\-]*(\.[a-zA-Z\d][a-zA-Z\d\-]*)*\.$/;
 res[824] = /^\*\.[a-z]([a-z\-\d]*[a-z\d]+)?(\.[a-z]([a-z\-\d]*[a-z\d]+)?)*$/;
 res[825] = /^(?=ab(de))(abd)(e)/;
 res[826] = /^(?!(ab)de|x)(abd)(f)/;