Bug#643459: pngquant: FTBFS: pngquant.c:261:13: error: format not a string, literal and no format arguments [-Werror=format-security]

[peter green]

Tags 643459 +patch
thanks

patch is attatched

diff -ur pngquant-1.0/pngquant.c pngquant-1.0.new/pngquant.c
--- pngquant-1.0/pngquant.c	2002-04-05 18:38:33.000000000 +0000
+++ pngquant-1.0.new/pngquant.c	2011-11-10 20:47:19.000000000 +0000
@@ -258,7 +258,7 @@
               VERSION);
             rwpng_version_info();
             fprintf(stderr, "\n");
-            fprintf(stderr, pq_usage);
+            fprintf(stderr, "%s",pq_usage);
             fflush(stderr);
             return 1;
         }
@@ -272,12 +272,12 @@
               VERSION );
             rwpng_version_info();
             fprintf( stderr, "\n" );
-            fprintf( stderr, pq_usage );
+            fprintf( stderr, "%s", pq_usage );
             fflush( stderr );
             return 1;
         }
         if ( sscanf( argv[argn], "%d", &reqcolors ) != 1 ) {
-            fprintf( stderr, pq_usage );
+            fprintf( stderr,"%s", pq_usage );
             fflush( stderr );
             return 1;
         }