libutil: Fix infinite loop in filterANSIEscapes on '\r'

E.g. nix-instantiate --eval -E 'abort "\r"' hangs. Found by afl-fuzz.
2018-02-19 23:20:26 +02:00
parent 056d28a601
commit 1d0e42879f
1 changed files with 1 additions and 1 deletions
@@ -1216,7 +1216,7 @@ std::string filterANSIEscapes(const std::string & s, unsigned int width)

        else if (*i == '\r')
            // do nothing for now
-            ;
+            i++;

        else {
            t += *i++; w++;