Fix up some signed char vs int issues that show up on powerpc.

coreutils/dos2unix.c

@@ -33,7 +33,7 @@
 
 // if fn is NULL then input is stdin and output is stdout
 static int convert(char *fn, int ConvType) {
-	char c;
+	int c;
 	char *tempFn = NULL;
 	FILE *in = stdin, *out = stdout;
 

coreutils/md5sum.c

@@ -244,7 +244,7 @@ void *md5_finish_ctx(struct md5_ctx *ctx, void *resbuf)
   /* Put the 64-bit file length in *bits* at the end of the buffer.  */
   *(md5_uint32 *) & ctx->buffer[bytes + pad] = SWAP(ctx->total[0] << 3);
   *(md5_uint32 *) & ctx->buffer[bytes + pad + 4] =
-    SWAP((ctx->total[1] << 3) | (ctx->total[0] >> 29));
+    SWAP( ((ctx->total[1] << 3) | (ctx->total[0] >> 29)) );
 
   /* Process last bytes.  */
   md5_process_block(ctx->buffer, bytes + pad + 8, ctx);