Match the CUPS directives being rewritten the way cupsd reads them

cupsd compares directive names with _cups_strcasecmp, so a hand-edited "systemgroup sys root wheel" is live configuration, but matching $1 against the canonical spelling skipped it and appended a second directive at the end of the file. parse_groups accumulates the groups of every SystemGroup directive it reads rather than replacing them, so both lines took effect and wheel kept the passwordless administration this is meant to remove, with the migration reporting success.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Codex XHigh <noreply@openai.com>

install/config/printing.sh

@@ -16,7 +16,7 @@ elif [[ -f $cups_files_conf ]]; then
 
   if ! awk '
     NR == FNR {
-      if ($1 == "SystemGroup") {
+      if (tolower($1) == "systemgroup") {
         for (i = 2; i <= NF; i++) {
           if (substr($i, 1, 1) == "#")
             break
@@ -29,7 +29,7 @@ elif [[ -f $cups_files_conf ]]; then
       next
     }
 
-    $1 == "SystemGroup" {
+    tolower($1) == "systemgroup" {
       comment_start = index($0, "#")
       if (!wrote_system_group) {
         printf "SystemGroup"
@@ -47,7 +47,7 @@ elif [[ -f $cups_files_conf ]]; then
       next
     }
 
-    $1 == "PeerCred" {
+    tolower($1) == "peercred" {
       comment_start = index($0, "#")
       if (!saw_peer_cred) {
         printf "PeerCred on"