Fix centering with ANSI escapes

This was broken with the logic change in #68f7fb9 I think.  At the very
least it’s that commit after which I noticed this bug.  Doesn’t matter
though, it’s fixed now.

1 files changed, 1 insertions, 1 deletions

diff --git a/center.c b/center.c
index be6d9ee..10e8130 100644
--- a/center.c
+++ b/center.c
@@ -165,7 +165,7 @@ noesclen(const char *s)
 	while ((d = strchr(d, ESC)) != NULL)
 		off += matchesc(++d);
 	
-	return utf8len(s) + off;
+	return utf8len(s) - off;
 }
 
 /* Return the length of the ANSI color escape sequence at the beginning of the string `s'. If no