pgppubring: fix signed and unsigned comparison

Fix size_t and int comparison in pgppubring.

diff --git a/pgppubring.c b/pgppubring.c
index 3f66ea8590edff26b54637171a024813b14ddf15..d29a6a23c05e9b9c61c53364663cfaafa5c6ca33 100644 (file)
--- a/pgppubring.c
+++ b/pgppubring.c
@@ -230,7 +230,7 @@ static char *binary_fingerprint_to_string(unsigned char *buf, size_t length)
 
   pf = fingerprint = mutt_mem_malloc((length * 2) + 1);
 
-  for (int i = 0; i < length; i++)
+  for (size_t i = 0; i < length; i++)
   {
     sprintf(pf, "%02X", buf[i]);
     pf += 2;