tree-wide: Drop custom formatting for print() help messages

I think this formatting was originally used because it simplified
adding new options to the help messages. However, these days, most
tools their help message end with "\nSee the %s for details.\n" so
the final line almost never has to be edited which eliminates the
benefit of the custom formatting used for printf() help messages.
Let's make things more consistent and use the same formatting for
printf() help messages that we use everywhere else.

Prompted by https://github.com/systemd/systemd/pull/18355#discussion_r567241580

src/resolve/resolvconf-compat.c

@@ -43,10 +43,9 @@ static int resolvconf_help(void) {
                "implementations are not supported and will cause the invocation to fail: -u,\n"
                "-I, -i, -l, -R, -r, -v, -V, --enable-updates, --disable-updates,\n"
                "--updates-are-enabled.\n"
-               "\nSee the %2$s for details.\n"
-               , program_invocation_short_name
-               , link
-        );
+               "\nSee the %2$s for details.\n",
+               program_invocation_short_name,
+               link);
 
         return 0;
 }

src/resolve/resolvectl.c

@@ -2568,12 +2568,11 @@ static int compat_help(void) {
                "     --set-dnssec=MODE      Set per-interface DNSSEC mode\n"
                "     --set-nta=DOMAIN       Set per-interface DNSSEC NTA\n"
                "     --revert               Revert per-interface configuration\n"
-               "\nSee the %4$s for details.\n"
-               , program_invocation_short_name
-               , ansi_highlight()
-               , ansi_normal()
-               , link
-        );
+               "\nSee the %4$s for details.\n",
+               program_invocation_short_name,
+               ansi_highlight(),
+               ansi_normal(),
+               link);
 
         return 0;
 }
@@ -2627,14 +2626,13 @@ static int native_help(void) {
                "                                                              (default: yes)\n"
                "     --raw[=payload|packet]    Dump the answer as binary data\n"
                "     --legend=BOOL             Print headers and additional info (default: yes)\n"
-               "\nSee the %s for details.\n"
-               , program_invocation_short_name
-               , ansi_highlight()
-               , ansi_normal()
-               , ansi_highlight()
-               , ansi_normal()
-               , link
-        );
+               "\nSee the %s for details.\n",
+               program_invocation_short_name,
+               ansi_highlight(),
+               ansi_normal(),
+               ansi_highlight(),
+               ansi_normal(),
+               link);
 
         return 0;
 }