docs: add more missing option descriptions

and improve wording or formatting where necessary.

Library/Homebrew/dev-cmd/audit.rb

@@ -1,4 +1,4 @@
-#:  * `audit` [`--strict`] [`--fix`] [`--online`] [`--new-formula`] [`--display-cop-names`] [`--display-filename`] [`--only=`<method>|`--except=`<method>] [`--only-cops=`[COP1,COP2..]|`--except-cops=`[COP1,COP2..]] [<formulae>]:
+#:  * `audit` [`--strict`] [`--fix`] [`--online`] [`--new-formula`] [`--display-cop-names`] [`--display-filename`] [`--only=`<method>|`--except=`<method>] [`--only-cops=`<cops>|`--except-cops=`<cops>] [<formulae>]:
 #:    Check <formulae> for Homebrew coding style violations. This should be
 #:    run before submitting a new formula.
 #:
@@ -8,7 +8,7 @@
 #:    style checks.
 #:
 #:    If `--fix` is passed, style violations will be
-#:    automatically fixed using RuboCop's `--auto-correct` feature.
+#:    automatically fixed using RuboCop's auto-correct feature.
 #:
 #:    If `--online` is passed, additional slower checks that require a network
 #:    connection are run.
@@ -23,19 +23,19 @@
 #:    If `--display-filename` is passed, every line of output is prefixed with the
 #:    name of the file or formula being audited, to make the output easy to grep.
 #:
-#:    If `--only` is passed, only the methods named `audit_<method>` will be run.
+#:    Passing `--only=`<method> will run only the methods named `audit_<method>`,
+#:    while `--except=`<method> will skip the methods named `audit_<method>`.
+#:    For either option <method> should be a comma-separated list.
 #:
-#:    If `--except` is passed, the methods named `audit_<method>` will not be run.
-#:
-#:    If `--only-cops` is passed, only the given Rubocop cop(s)' violations would be checked.
-#:
-#:    If `--except-cops` is passed, the given Rubocop cop(s)' checks would be skipped.
+#:    Passing `--only-cops=`<cops> will check for violations of only the listed
+#:    RuboCop <cops>, while `--except-cops=`<cops> will skip checking the listed
+#:    <cops>. For either option <cops> should be a comma-separated list of cop names.
 #:
 #:    `audit` exits with a non-zero status if any errors are found. This is useful,
 #:    for instance, for implementing pre-commit hooks.
 
 # Undocumented options:
-#     -D activates debugging and profiling of the audit methods (not the same as --debug)
+#     `-D` activates debugging and profiling of the audit methods (not the same as `--debug`)
 
 require "formula"
 require "formula_versions"

Library/Homebrew/dev-cmd/bottle.rb

@@ -25,6 +25,10 @@
 #:    If `--write` is passed, write the changes to the formula file. A new
 #:    commit will then be generated unless `--no-commit` is passed.
 
+# Undocumented options:
+#     `--json` writes bottle information to a JSON file, which can be used as
+#     the argument for `--merge`.
+
 require "formula"
 require "utils/bottles"
 require "tab"

Library/Homebrew/dev-cmd/bump-formula-pr.rb

@@ -33,6 +33,9 @@
 #:    which opens the pull request URL in a browser. Instead, output it to the
 #:    command line.
 #:
+#:    If `--quiet` is passed, don't output replacement messages or warn about
+#:    duplicate pull requests.
+#:
 #:    Note that this command cannot be used to transition a formula from a
 #:    URL-and-sha256 style specification into a tag-and-revision style
 #:    specification, nor vice versa. It must use whichever style specification

Library/Homebrew/dev-cmd/linkage.rb

@@ -1,4 +1,4 @@
-#:  * `linkage` [`--test`] [`--reverse`]  <formula>:
+#:  * `linkage` [`--test`] [`--reverse`] <formula>:
 #:    Checks the library links of an installed formula.
 #:
 #:    Only works on installed formulae. An error is raised if it is run on