common cvtAndAppend: use a more appropriate type for 'len'

Squashes a -Wsign-conversion warning.

diff --git a/lib/common/utils.c b/lib/common/utils.c
index d0aed9a7649822a451cabe4668da0ee66385f2ab..31e5dc108e131157928d587b5c79877382c3debe 100644 (file)
--- a/lib/common/utils.c
+++ b/lib/common/utils.c
@@ -1356,7 +1356,7 @@ cvtAndAppend (unsigned char c, agxbuf* xb)
 
     char *s = latin1ToUTF8(buf);
     char *p = s;
-    int len = strlen(s);
+    size_t len = strlen(s);
     while (len-- > 1)
        agxbputc(xb, *p++);
     c = *p;