cksum: --tag is meaningless with --check #7055
Description
(Found with fuzzer)
File content: /tmp/checksum_file=GVajpqCGFscY0d0ubfS5Wg== /tmp/ghfmqwlkpt
args: ["cksum", "--tag", "-c", "-a", "md5", "/tmp/muwfducico"]
Running test ["cksum", "--tag", "-c", "-a", "md5", "/tmp/muwfducico"]
Test Type: cksum
Input: ["--tag", "-c", "-a", "md5", "/tmp/muwfducico"]
Rust stderr: the argument '--tag' cannot be used with '--check'
Usage: fuzz/target/x86_64-unknown-linux-gnu/release/fuzz_cksum [OPTIONS] [FILE]...
For more information, try '--help'.
GNU stderr: the --binary and --text options are meaningless when verifying checksums
Try 'cksum --help' for more information.
Diff=
-the argument '--tag' cannot be used with '--check'
-
-Usage: fuzz/target/x86_64-unknown-linux-gnu/release/fuzz_cksum [OPTIONS] [FILE]...
-
-For more information, try '--help'.
+the --binary and --text options are meaningless when verifying checksums
+Try 'cksum --help' for more information.
Discrepancy detected: stderr differs
Test completed with discrepancies for cksum: ["--tag", "-c", "-a", "md5", "/tmp/muwfducico"]
Here, we get clap to prevent the use of --tag with --check, rather than checking it ourselves and displaying the right message.
On this one, I think we could refine our message, to indicate that the operation is meaningless, but I feel like the GNU message is also wrong because it fails to correctly mention the faulty flag.