tests/cc: Use diff -u - scc - simple c99 compiler
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       ---
   DIR commit dd2b510053f9b9bfd2eb4f249d493b5f42c3c489
   DIR parent 3300cf3d3e2a83b6b6c438fd40b8a9a6b164900e
  HTML Author: Roberto E. Vargas Caballero <k0ga@shike2.net>
       Date:   Mon, 16 Feb 2026 11:07:29 +0100
       
       tests/cc: Use diff -u
       
       Diff -u generates diff files easier to understand.
       
       Diffstat:
         M tests/cc/error/chktest.sh           |       2 +-
       
       1 file changed, 1 insertion(+), 1 deletion(-)
       ---
   DIR diff --git a/tests/cc/error/chktest.sh b/tests/cc/error/chktest.sh
       @@ -15,7 +15,7 @@ do
        
                (SCCPREFIX=$SCCPREFIX $CC $CFLAGS -W -c $i) 2> $err
                (echo "/^PATTERN/+;/^\./-w $chk" | ed -s $i) >/dev/null 2>&1
       -        (diff -c $chk $err >> test.log  && printf '[PASS]' || printf '[FAIL]'
       +        (diff -u $chk $err >> test.log  && printf '[PASS]' || printf '[FAIL]'
                 printf "\t%s\t%s\n" $i $state) | tee -a test.log
                rm -f *.o
        done < $file