help: release strbuf on error return in exec_man_man()

diff --git a/imap-send.c b/imap-send.c
index 40ddb496e6b7b9b1d9db9f16e0cf5ae5a9396892..b2d0b849bb20c88532dd2952a4a5ae94204ccad8 100644 (file)
--- a/imap-send.c
+++ b/imap-send.c
@@ -23,6 +23,7 @@
  */
 
 #include "cache.h"
+#include "config.h"
 #include "credential.h"
 #include "exec_cmd.h"
 #include "run-command.h"
@@ -860,7 +861,7 @@ static char hexchar(unsigned int b)
        return b < 10 ? '0' + b : 'a' + (b - 10);
 }
 
-#define ENCODED_SIZE(n) (4*((n+2)/3))
+#define ENCODED_SIZE(n) (4 * DIV_ROUND_UP((n), 3))
 static char *cram(const char *challenge_64, const char *user, const char *pass)
 {
        int i, resp_len, encoded_len, decoded_len;