Description: Fix certain issues identified by -Wformat-security.
Author: Sebastian Harl <tokkee@debian.org>

--- a/src/pfs/pfs.cpp
+++ b/src/pfs/pfs.cpp
@@ -525,8 +525,7 @@ static void writeTags( const TagContaine
   TagList::const_iterator it;
   fprintf( out, "%d" PFSEOL, tags->getSize() );
   for( it = tags->tagsBegin(); it != tags->tagsEnd(); it++ ) {
-    fprintf( out, (const char*)(it->c_str()) );
-    fprintf( out, PFSEOL );
+    fprintf( out, "%s" PFSEOL, (const char*)(it->c_str()) );
   }
 }