Merge branch 'release/v0.23.0'v0.23.0

* release/v0.23.0:
  Bump version number to 0.23.0
  Remove unused `self` var from clog(1df)
  Change double-quote printf pattern to single-quote
  Move ShellCheck line to correct place in sra(1df)
  Quote EDITOR/VISUAL assignments for clarity
  Explicitly ignore uninteresting tree(1) opts
  Refactor clog(1df), allow args and non-term stdin
  Reimplement bl(1df) in Awk
  Separate ax(1df) manpage args from command
  Make newline explicit for ax(1df)
  Make first ax(1df) arg safer, warn on second arg
  Correct monospaced blocks in Vim plugin docs

1 files changed, 12 insertions, 12 deletions

diff --git a/bin/clog.sh b/bin/clog.sh
index 1b612d68..3269c508 100644
--- a/bin/clog.sh
+++ b/bin/clog.sh
@@ -1,17 +1,17 @@
 # Record a timestamped message to a logfile, defaulting to ~/.clog
-self=clog
 
-# Ignore arguments
-set --
+# Build the cat(1) command we'll run, wrapping it in rlwrap(1) if available and
+# applicable.
+if [ "$#" -eq 0 ] && [ -t 0 ] && command -v rlwrap >/dev/null 2>&1 ; then
+    set -- rlwrap --history-filename=/dev/null cat -- "${@:--}"
+else
+    set -- cat -- "${@:--}"
+fi
 
-# If we have rlwrap, quietly use it
-command -v rlwrap >/dev/null 2>&1 &&
-    set -- rlwrap --history-filename=/dev/null -C "$self" "$@"
-
-# Write the date, the standard input (rlwrapped if applicable), and two dashes
-# to $CLOG, defaulting to ~/.clog.
+# Write the date, the input, and two dashes to $CLOG, defaulting to ~/.clog.
+clog=${CLOG:-"$HOME"/.clog}
 {
     date
-    "$@" cat -
-    printf '%s\n' --
-} >>"${CLOG:-"$HOME"/.clog}"
+    "$@"
+    printf -- '--\n'
+} >> "$clog"