add -p: improve error messages

diff --git a/strbuf.c b/strbuf.c
index 8007be8fbafdc3f4542e27cfc9344044f71d43dc..1df674e9194ee6d5cd5386f477745ff6639b7b65 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -683,7 +683,7 @@ static void strbuf_add_urlencode(struct strbuf *sb, const char *s, size_t len,
                    (!reserved && is_rfc3986_reserved(ch)))
                        strbuf_addch(sb, ch);
                else
-                       strbuf_addf(sb, "%%%02x", ch);
+                       strbuf_addf(sb, "%%%02x", (unsigned char)ch);
        }
 }