backslash fix

preserving backslashes, that 'sed' stripped away

dots/bin/librewolfSettingsBackup.sh

@@ -40,12 +40,21 @@ else
     echo "prefs=${prefs}"
     custState=$(grep -i "browser.uicustomization.state" ${prefs})
 
+    echo ""
+    echo ${custState}
+    echo ""
+
     # update user.js in the repo
     # case sensitive replace:
     #   flags: -i edit file in place, c - replace the line
     #   sed -i "/search_string/c replacement_string" ${filename}
     # case insensitive replace:
-    sed -i "/user_pref(\"browser\.uiCustomization\.state\"/I s/.*/${custState}/" ${trg}
+
+    # move old settings from the target file
+    sed -i '/browser.uiCustomization.state/d' ${trg}
+
+    # add new settings to the target file
+    echo ${custState} >> ${trg}
 
     more ${trg}
 fi