connman: Fix comments after @erikarvstedt's comments

pkgs/tools/networking/connman/default.nix

···
 , libmnl
 , gnutls
 , readline
-# Choices one has to decide
+# configureable options
 , firewallType ? "iptables" # or "nftables"
 , iptables ? null
 , libnftnl ? null # for nftables
···
     ++ stdenv.lib.optionals (firewallType == "nftables") [ libnftnl ]
   ;
 
-  # Fix file program not found
+  # fix invalid path to 'file'
   preConfigure = ''
     sed -i "s/\/usr\/bin\/file/file/g" ./configure
   '';
···
     # production build flags
     "--disable-maintainer-mode"
     "--enable-session-policy-local=builtin"
-    # This is for building and running tests (probably enabled by default),
-    # --enable-tests installs the tests as well
+    # for building and running tests
+    # --enable-tests # installs the tests, we don't want that
     "--enable-tools"
   ]
     ++ stdenv.lib.optionals (!enableLoopback) [ "--disable-loopback" ]
···
     ++ stdenv.lib.optionals (!enableWireguard) [ "--disable-wireguard" ]
     ++ stdenv.lib.optionals (!enableGadget) [ "--disable-gadget" ]
     ++ stdenv.lib.optionals (!enableWifi) [ "--disable-wifi" ]
-    # We (almost) always turn on IWD support as it doesn't require any new dependencies
-    # and it's easier for the NixOS module to use only 1 connmand package when
+    # enable IWD support for wifi as it doesn't require any new dependencies
+    # and it's easier for the NixOS module to use only one connman package when
     # IWD is requested
     ++ stdenv.lib.optionals (enableWifi) [ "--enable-iwd" ]
     ++ stdenv.lib.optionals (!enableBluetooth) [ "--disable-bluetooth" ]

pkgs/top-level/all-packages.nix

···
     enablePolkit = false;
     enablePptp = false;
     enableLoopback = false;
-    # enableEthernet = false;
+    # enableEthernet = false; # If disabled no ethernet connection can be performed
     enableWireguard = false;
     enableGadget = false;
-    # enableWifi = false;
+    # enableWifi = false; # If disabled no WiFi connection can be performed
     enableBluetooth = false;
     enableOfono = false;
     enableDundee = false;
···
     enableTools = false;
     enableStats = false;
     enableClient = false;
-    # enableDatafiles = false;
+    # enableDatafiles = false; # If disabled, configuration and data files are not installed
   };
   connmanFull = callPackage ../tools/networking/connman {
     enableNetworkManager = true;