use --tag docstring wording closer to md5sum's

2 files changed, 3 insertions, 2 deletions

diff --git a/b3sum/README.md b/b3sum/README.md
index d1fbc21..595ce9e 100644
--- a/b3sum/README.md
+++ b/b3sum/README.md
@@ -19,6 +19,7 @@ Options:
       --no-mmap               Disable memory mapping
       --no-names              Omit filenames in the output
       --raw                   Write raw output bytes to stdout, rather than hex
+      --tag                   Output BSD-style checksums: BLAKE3 ([FILE]) = [HASH]
   -c, --check                 Read BLAKE3 sums from the [FILE]s and check them
       --quiet                 Skip printing OK for each checked file
   -h, --help                  Print help (see more with '--help')
diff --git a/b3sum/src/main.rs b/b3sum/src/main.rs
index ba9db13..ba386c7 100644
--- a/b3sum/src/main.rs
+++ b/b3sum/src/main.rs
@@ -73,7 +73,7 @@ struct Inner {
     #[arg(long)]
     raw: bool,
 
-    /// Prefix output with `BLAKE3 (...) =`
+    /// Output BSD-style checksums: BLAKE3 ([FILE]) = [HASH]
     #[arg(long)]
     tag: bool,
 
@@ -364,7 +364,7 @@ fn parse_check_line(mut line: &str) -> Result<ParsedCheckLine> {
         line_after_slash = line;
     }
 
-    // Split the line. It might be "<hash>  <file>" or "BLAKE3(<file>) = <hash>". The latter comes
+    // Split the line. It might be "<hash>  <file>" or "BLAKE3 (<file>) = <hash>". The latter comes
     // from the --tag flag.
     let hash_hex;
     let file_str;