Stop csh_glob from reading past end of string

It was reading one byte too far, and looking at the trailing null.
This happened only in the case of an unmatched quote.

diff --git a/ext/File-Glob/Glob.xs b/ext/File-Glob/Glob.xs
index c055d1b..030e827 100644 (file)
--- a/ext/File-Glob/Glob.xs
+++ b/ext/File-Glob/Glob.xs
@@ -132,7 +132,7 @@ csh_glob(pTHX)
                }
                if (piece) sv_catpvn(word, piece, s-piece);
                piece = s+1;
-               while (++s <= patend)
+               while (++s < patend)
                    if (*s == '\\') {
                        s++;
                        /* If the backslash is here to escape a quote,