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toppm: checking for err is useless; it was initialized to nil earlier

--- a/sys/src/cmd/jpg/toppm.c

+++ b/sys/src/cmd/jpg/toppm.c

@@ -62,8 +62,7 @@

 			freememimage(i);

 			i = ni;

 		}

-		if(err == nil)

-			err = memwriteppm(&bout, i, comment, rflag);

+		err = memwriteppm(&bout, i, comment, rflag);

 	}else{

 		fd = open(argv[0], OREAD);

 		if(fd < 0)

-- 

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