Drop the byte-exact USAGE pin from test_healthcheck.sh

scripts/test_healthcheck.sh

@@ -1,11 +1,11 @@
 #!/usr/bin/env bash
 # Self-check for orchestra_e2e_healthcheck.sh.
 #
-# The pinned USAGE string is gone. Pinning the help text meant every flag
-# added to the healthcheck turned this file red for a reason that had nothing
-# to do with the flag, so the usage assertions now check shape rather than
-# exact bytes: --help must print a Usage: line, must mention every long flag
-# the script actually parses, and must exit 0 from any argument position.
+# The pinned USAGE string is gone. Pinning the help text byte for byte meant
+# every flag added to the healthcheck turned this file red for a reason that
+# had nothing to do with the flag. The usage assertions now check shape: --help
+# must print a Usage: line, must document every long flag the script actually
+# parses, and must exit 0 from any argument position.
 
 HC="$(dirname "$0")/orchestra_e2e_healthcheck.sh"
 OK='OK - all healthchecks passed'
@@ -36,7 +36,6 @@ usage_shape() { # usage_shape <label> [args...]
     Usage:*) ;;
     *) fail "$label: no Usage: line" ;;
   esac
-  # Every long flag the script parses must be documented.
   for flag in $(grep -o -- '--[a-z][a-z-]*' "$HC" | sort -u); do
     case "$got" in
       *"$flag"*) ;;