GIT_SILENT Sort the known options.

Brought up by me noticing use-modules was way out, though it apparently
wasn't the only one. Done by selecting the lines, then running through
"sort -i".

kdesrc-build

@@ -1542,14 +1542,14 @@ EOF
     my %defaultGlobalOptions = (
         "async"                => 1,
         "binpath"              => '',
-        "build-when-unchanged" => 1, # Safe default
         "branch"               => "",
         "build-dir"            => "build",
         "build-system-only"    => "",
+        "build-when-unchanged" => 1, # Safe default
         "checkout-only"        => "",
         "cmake-options"        => "",
-        "configure-flags"      => "",
         "colorful-output"      => 1, # Use color by default.
+        "configure-flags"      => "",
         "custom-build-command" => '',
         "cxxflags"             => "-pipe",
         "debug"                => "",
@@ -1559,7 +1559,6 @@ EOF
         "disable-agent-check"  => 0,   # If true we don't check on ssh-agent
         "do-not-compile"       => "",
         "git-repository-base"  => {}, # Base path template for use multiple times.
-        "use-modules"          => "",
         "install-after-build"  => 1,  # Default to true
         "kdedir"               => "$ENV{HOME}/kde",
         "kde-languages"        => "",
@@ -1591,6 +1590,7 @@ EOF
         "tag"                  => "",
         "use-clean-install"    => 0,
         "use-idle-io-priority" => 0,
+        "use-modules"          => "",
         # Controls whether to build "stable" branches instead of "master"
         "use-stable-kde"       => 0,
     );