Merge branch 'maint'

* maint:
  Fix lseek(2) calls with args 2 and 3 swapped
  Honor -p<n> when applying git diffs
  Fix dependency of common-cmds.h
  Fix renaming branch without config file
  DESTDIR support for git/contrib/emacs
  gitweb: Fix bug in "blobdiff" view for split (e.g. file to symlink) patches
  Document --left-right option to rev-list.
  Revert "builtin-archive: use RUN_SETUP"
  rename contrib/hooks/post-receieve-email to contrib/hooks/post-receive-email.
  rerere: make sorting really stable.
  Fix t4200-rerere for white-space from "wc -l"

contrib/emacs/Makefile

@@ -11,8 +11,8 @@ emacsdir = $(prefix)/share/emacs/site-lisp
 all: $(ELC)
 
 install: all
-	$(INSTALL) -d $(emacsdir)
-	$(INSTALL_ELC) $(ELC) $(emacsdir)
+	$(INSTALL) -d $(DESTDIR)$(emacsdir)
+	$(INSTALL_ELC) $(ELC) $(DESTDIR)$(emacsdir)
 
 %.elc: %.el
 	$(EMACS) -batch -f batch-byte-compile $<