git: update to 1.9.2

Everything works just bumping the version in Makefile and commit hash in
submodule. No code changes required.

Makefile

@@ -14,7 +14,7 @@ htmldir = $(docdir)
 pdfdir = $(docdir)
 mandir = $(prefix)/share/man
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 1.9.1
+GIT_VER = 1.9.2
 GIT_URL = https://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.gz
 INSTALL = install
 COPYTREE = cp -r

git

@@ -1 +1 @@
-Subproject commit cee0c2750bb5f1b38f15ef961517e03c2e39c9ec
+Subproject commit 0bc85abb7aa9b24b093253018801a0fb43d01122