Fix minor issues in command help text formatting

- Inconsistent or unneeded indentation
- Missing or superfluous empty lines
- Missing or wrongly formatted arguments in command summary
- Missing punctuation

1 files changed, 5 insertions, 4 deletions

diff --git a/Library/Homebrew/cmd/update.sh b/Library/Homebrew/cmd/update.sh
index ba43fd6d1..dbd1a4de8 100644
--- a/Library/Homebrew/cmd/update.sh
+++ b/Library/Homebrew/cmd/update.sh
@@ -1,11 +1,12 @@
-#:  * `update` [`--merge`]:
+#:  * `update` [`--merge`] [`--force`]:
 #:    Fetch the newest version of Homebrew and all formulae from GitHub using
-#:     `git`(1).
+#:    `git`(1).
 #:
 #:    If `--merge` is specified then `git merge` is used to include updates
-#:      (rather than `git rebase`).
+#:    (rather than `git rebase`).
+#:
 #:    If `--force` is specified then always do a slower, full update check even
-#:      if unnecessary.
+#:    if unnecessary.
 
 # Hide shellcheck complaint:
 # shellcheck source=/dev/null