Merge branch 'maint'

* maint: gitweb: clarify search results page when no matching commit found Documentation: add a FILES section for show-ref Makefile: add missing dependency on http.h Makefile: add missing dependencies on url.h Documentation/git-log: Clarify --full-diff git-rebase: fix typo when parsing --force-rebase imap-send: Fix sprintf usage prune: allow --dry-run for -n and --verbose for -v notes: allow --dry-run for -n and --verbose for -v Document -B<n>[/<m>], -M<n> and -C<n> variants of -B, -M and -C Documentation: cite git-am from git-apply t7003: fix subdirectory-filter test Allow "check-ref-format --branch" from subdirectory check-ref-format: handle subcommands in separate functions pretty-options.txt: match --format's documentation with implementation.