Put exit status definitions back into updater.sh

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
         run: ln -sf /usr/bin/${{ matrix.shell }} /bin/sh
       - name: Check exit status definitions
         run: |
-          . ./lib.sh
+          . ./updater.sh 2>/dev/null
 
           while IFS='=' read -r name code; do
               # "When reporting the exit status with the special parameter '?',

updater.sh

@@ -22,7 +22,38 @@
 #### and duplicated only to maintain the same file count as before.        ####
 ###############################################################################
 
-. ./lib.sh
+# https://stackoverflow.com/q/1101957
+exit_status_definitions() {
+    cut -d'#' -f1 <<'EOF'
+_EX_OK=0           # Successful exit status.
+_EX_FAIL=1         # Failed exit status.
+_EX_USAGE=2        # Command line usage error.
+_EX__BASE=64       # Base value for error messages.
+_EX_DATAERR=65     # Data format error.
+_EX_NOINPUT=66     # Cannot open input.
+_EX_NOUSER=67      # Addressee unknown.
+_EX_NOHOST=68      # Host name unknown.
+_EX_UNAVAILABLE=69 # Service unavailable.
+_EX_SOFTWARE=70    # Internal software error.
+_EX_OSERR=71       # System error (e.g., can't fork).
+_EX_OSFILE=72      # Critical OS file missing.
+_EX_CANTCREAT=73   # Can't create (user) output file.
+_EX_IOERR=74       # Input/output error.
+_EX_TEMPFAIL=75    # Temp failure; user is invited to retry.
+_EX_PROTOCOL=76    # Remote error in protocol.
+_EX_NOPERM=77      # Permission denied.
+_EX_CONFIG=78      # Configuration error.
+_EX_NOEXEC=126     # A file to be executed was found, but it was not an executable utility.
+_EX_CNF=127        # A utility to be executed was not found.
+_EX_SIGHUP=129     # A command was interrupted by SIGHUP (1).
+_EX_SIGINT=130     # A command was interrupted by SIGINT (2).
+_EX_SIGQUIT=131    # A command was interrupted by SIGQUIT (3).
+_EX_SIGABRT=134    # A command was interrupted by SIGABRT (6).
+_EX_SIGKILL=137    # A command was interrupted by SIGKILL (9).
+_EX_SIGALRM=142    # A command was interrupted by SIGALRM (14).
+_EX_SIGTERM=143    # A command was interrupted by SIGTERM (15).
+EOF
+}
 
 is_option_present() { # arg: name
     [ "$1" = true ] || {