Merge branch 'jc/symbol-static'

* jc/symbol-static:
date.c: mark file-local function static
Replace parse_blob() with an explanatory comment
symlinks.c: remove unused functions
object.c: remove unused functions
strbuf.c: remove unused function
sha1_file.c: remove unused function
mailmap.c: remove unused function
utf8.c: mark file-local function static
submodule.c: mark file-local function static
quote.c: mark file-local function static
remote-curl.c: mark file-local function static
read-cache.c: mark file-local functions static
parse-options.c: mark file-local function static
entry.c: mark file-local function static
http.c: mark file-local functions static
pretty.c: mark file-local function static
builtin-rev-list.c: mark file-local function static
bisect.c: mark file-local function static

diff --cc bisect.c
Simple merge

diff --cc cache.h
Simple merge

diff --cc entry.c
Simple merge

diff --cc git-compat-util.h
Simple merge

diff --cc parse-options.c
Simple merge

diff --cc parse-options.h
Simple merge

diff --cc read-cache.c
Simple merge

diff --cc remote-curl.c
Simple merge