Merge branch 'master' into next

* master:
  Update draft release notes to 1.7.6
  Start 1.7.5.4 draft release notes
  config.c: Remove unused git_config_global() function
  Documentation: do not misinterpret refspecs as bold text
  format-patch: make zero-length subject prefixes prettier

Documentation/RelNotes/1.7.5.4.txt

@@ -0,0 +1,18 @@
+Git v1.7.5.4 Release Notes
+==========================
+
+Fixes since v1.7.5.3
+--------------------
+
+ * The single-key mode of "git add -p" was easily fooled into thinking
+   that it was told to add everthing ('a') when up-arrow was pressed by
+   mistake.
+
+ * "git diff -C -C" used to disable the rename detection entirely when
+   there are too many copy candidate paths in the tree; now it falls
+   back to "-C" when doing so would keep the copy candidate paths
+   under the rename detection limit.
+
+ * "git rerere" did not diagnose a corrupt MERGE_RR file in some cases.
+
+And other minor fixes and documentation updates.

Documentation/RelNotes/1.7.6.txt

@@ -53,11 +53,6 @@ Updates since v1.7.5
  * "git commit" learned a "--patch" option to directly jump to the
    per-hunk selection UI of the interactive mode.
 
- * "git diff -C -C" used to disable the rename detection entirely when
-   there are too many copy candidate paths in the tree; now it falls
-   back to "-C" when doing so would keep the copy candidate paths
-   under the rename detection limit.
-
  * "git diff" and its family of commands learned --dirstat=0 to show
    directories that contribute less than 0.1% of changes.
 
@@ -72,6 +67,8 @@ Updates since v1.7.5
    characters in it, e.g. "Junio C. Hamano" <jch@example.com>.  Earlier
    it was up to the user to do this when using its output.
 
+ * "git format-patch" can take an empty --subject-prefix now.
+
  * "git log" and friends learned a new "--notes" option to replace the
    "--show-notes" option.  Unlike "--show-notes", "--notes=<ref>" does
    not imply showing the default notes.
@@ -93,9 +90,20 @@ Updates since v1.7.5
 
  * p4-import (from contrib) learned a new option --preserve-user.
 
+ * "git read-tree -m" learned "--dry-run" option that reports if a merge
+   would fail without touching the index nor the working tree.
+
  * "git rebase" that does not specify on top of which branch to rebase
    the current branch now uses @{upstream} of the current branch.
 
+ * "git rebase" finished either normally or with --abort did not
+   update the reflog for HEAD to record the event to come back to
+   where it started from.
+
+ * "git remote add -t only-this-branch --mirror=fetch" is now allowed. Earlier
+   a fetch-mode mirror meant mirror everything, but now it only means refs are
+   not renamed.
+
  * "git rev-list --count" used with "--cherry-mark" counts the cherry-picked
    commits separately, producing more a useful output.
 
@@ -116,11 +124,6 @@ Fixes since v1.7.5
 Unless otherwise noted, all the fixes in 1.7.5.X maintenance track are
 included in this release.
 
- * The single-key mode of "git add -p" was easily fooled into thinking
-   that it was told to add everthing ('a') when up-arrow was pressed by
-   mistake.
-   (merge tr/add-i-no-escape later)
-
  * "git config" used to choke with an insanely long line.
    (merge ef/maint-strbuf-init later)
 

Documentation/git-remote-helpers.txt

@@ -181,11 +181,11 @@ CAPABILITIES
 	When using the import command, expect the source ref to have
 	been written to the destination ref. The earliest applicable
 	refspec takes precedence. For example
-	"refs/heads/*:refs/svn/origin/branches/*" means that, after an
+	"refs/heads/{asterisk}:refs/svn/origin/branches/{asterisk}" means
-	"import refs/heads/name", the script has written to
+	that, after an "import refs/heads/name", the script has written to
 	refs/svn/origin/branches/name. If this capability is used at
 	all, it must cover all refs reported by the list command; if
-	it is not used, it is effectively "*:*"
+	it is not used, it is effectively "{asterisk}:{asterisk}"
 
 REF LIST ATTRIBUTES
 -------------------

config.c

@@ -825,11 +825,6 @@ int git_config_system(void)
 	return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
 }
 
-int git_config_global(void)
-{
-	return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0);
-}
-
 int git_config_early(config_fn_t fn, void *data, const char *repo_config)
 {
 	int ret = 0, found = 0;

log-tree.c

@@ -294,8 +294,9 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
 	if (opt->total > 0) {
 		static char buffer[64];
 		snprintf(buffer, sizeof(buffer),
-			 "Subject: [%s %0*d/%d] ",
+			 "Subject: [%s%s%0*d/%d] ",
 			 opt->subject_prefix,
+			 *opt->subject_prefix ? " " : "",
 			 digits_in_number(opt->total),
 			 opt->nr, opt->total);
 		subject = buffer;

t/t4014-format-patch.sh

@@ -851,4 +851,22 @@ test_expect_success 'subject lines do not have 822 atom-quoting' '
 	test_cmp expect actual
 '
 
+cat >expect <<'EOF'
+Subject: [PREFIX 1/1] header with . in it
+EOF
+test_expect_success 'subject prefixes have space prepended' '
+	git format-patch -n -1 --stdout --subject-prefix=PREFIX >patch &&
+	grep ^Subject: patch >actual &&
+	test_cmp expect actual
+'
+
+cat >expect <<'EOF'
+Subject: [1/1] header with . in it
+EOF
+test_expect_success 'empty subject prefix does not have extra space' '
+	git format-patch -n -1 --stdout --subject-prefix= >patch &&
+	grep ^Subject: patch >actual &&
+	test_cmp expect actual
+'
+
 test_done