Fix warning introduced a couple of commits ago.

diff --git a/src/lib/util.cc b/src/lib/util.cc
index 7d0d2bf606c698d3a2a4881f2336c4e156456899..133795e1b907b265e728dc3b4bddc6799c3e4e5c 100644 (file)
--- a/src/lib/util.cc
+++ b/src/lib/util.cc
@@ -791,7 +791,7 @@ careful_string_filter (string s)
        /* Then remove anything that's not in a very limited character set */
        wstring out;
        wstring const allowed = L"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_%.+";
-       for (size_t i = 0; i < transliterated_more.length(); ++i) {
+       for (int i = 0; i < transliterated_more.length(); ++i) {
                wchar_t c = transliterated_more[i];
                if (allowed.find(c) != string::npos) {
                        out += c;