Replace many calls to sprintf with QUtil::hex_encode

Add QUtil::hex_encode to encode binary data has a hexadecimal string,
and use it in place of sprintf where possible.

1 files changed, 3 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 7f4d64f7..308779fd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16,6 +16,9 @@
 
 2013-01-25  Jay Berkenbilt  <ejb@ql.org>
 
+	* New method QUtil::hex_encode to encode binary data as a
+	hexadecimal string
+
 	* qpdf --check was exiting with status 0 in some rare cases even
 	when errors were found.  It now always exits with one of the
 	document error codes (0 for success, 2 for errors, 3 or warnings).