Update maintainers, manpage and completions.

Autogenerated by the [update-man-completions](https://github.com/Homebrew/brew/blob/HEAD/.github/workflows/update-man-completions.yml) workflow.

completions/bash/brew

@@ -124,6 +124,7 @@ _brew___cache() {
   case "${cur}" in
     -*)
       __brewcomp "
+      --HEAD
       --build-from-source
       --cask
       --debug

completions/fish/brew.fish

@@ -200,6 +200,7 @@ end
 
 
 __fish_brew_complete_cmd '--cache' 'Display Homebrew\'s download cache'
+__fish_brew_complete_arg '--cache' -l HEAD -d 'Show the cache file used when building from HEAD'
 __fish_brew_complete_arg '--cache' -l build-from-source -d 'Show the cache file used when building from source'
 __fish_brew_complete_arg '--cache' -l cask -d 'Only show cache files for casks'
 __fish_brew_complete_arg '--cache' -l debug -d 'Display any debugging information'

completions/zsh/_brew

@@ -252,9 +252,10 @@ __brew_diagnostic_checks() {
 # brew --cache
 _brew___cache() {
   _arguments \
-    '(--force-bottle --cask)--build-from-source[Show the cache file used when building from source]' \
+    '(--build-from-source --force-bottle --cask)--HEAD[Show the cache file used when building from HEAD]' \
+    '(--force-bottle --HEAD --cask)--build-from-source[Show the cache file used when building from source]' \
     '--debug[Display any debugging information]' \
-    '(--build-from-source --cask)--force-bottle[Show the cache file used when pouring a bottle]' \
+    '(--build-from-source --HEAD --cask)--force-bottle[Show the cache file used when pouring a bottle]' \
     '--help[Show this message]' \
     '--quiet[Make some output more quiet]' \
     '--verbose[Make some output more verbose]' \
@@ -262,7 +263,7 @@ _brew___cache() {
     '(--cask)--formula[Only show cache files for formulae]' \
     '*::formula:__brew_formulae' \
     - cask \
-    '(--build-from-source --force-bottle --formula)--cask[Only show cache files for casks]' \
+    '(--build-from-source --force-bottle --HEAD --formula)--cask[Only show cache files for casks]' \
     '*::cask:__brew_casks'
 }
 

docs/Manpage.md

@@ -747,6 +747,8 @@ If *`formula`* is provided, display the file or directory used to cache *`formul
   Show the cache file used when building from source.
 * `--force-bottle`:
   Show the cache file used when pouring a bottle.
+* `--HEAD`:
+  Show the cache file used when building from HEAD.
 * `--formula`:
   Only show cache files for formulae.
 * `--cask`:

manpages/brew.1

@@ -1037,6 +1037,10 @@ Show the cache file used when building from source\.
 Show the cache file used when pouring a bottle\.
 .
 .TP
+\fB\-\-HEAD\fR
+Show the cache file used when building from HEAD\.
+.
+.TP
 \fB\-\-formula\fR
 Only show cache files for formulae\.
 .