[scripts] Align fx format-code help output

The long args for some of the fx format-code output didn't line
up.

Change-Id: I9b5ec6437ccbf7c1f506158eb93c2c82997cb96e
diff --git a/scripts/devshell/format-code b/scripts/devshell/format-code
index 7ccdf5c..be36a14 100755
--- a/scripts/devshell/format-code
+++ b/scripts/devshell/format-code
@@ -18,12 +18,12 @@
 ##   --files   Allows the user to specify files.  Files are comma separated.
 ##             Globs are dealt with by bash; fx format-code "--files=foo/*" will
 ##             work as expected.
-##    --target Allows the user to specify a gn target.
-##    --git    The default; it uses `git diff-index` against the newest parent
+##   --target  Allows the user to specify a gn target.
+##   --git     The default; it uses `git diff-index` against the newest parent
 ##             commit in the upstream branch (or against HEAD if no such commit
 ##             is found).  Files that are locally modified, staged or touched by
 ##             any commits introduced on the local branch are formatted.
-##    --remove-ordinals (temporary)
+##   --remove-ordinals (temporary)
 ##             Removes ordinals from FIDL files.  This option will be removed
 ##             when ordinals are no longer legal in FIDL files.