Merge branch 'pe/date' into next

* pe/date:
  date.c: improve guess between timezone offset and year.
  git-rm: honor -n flag.
  git-clone: fix duplicated "master" in $GIT_DIR/remotes/origin
  check for error return from fork()
  Document git-clone --use-separate-remote

Documentation/git-clone.txt

@@ -11,7 +11,7 @@ SYNOPSIS
 [verse]
 'git-clone' [--template=<template_directory>] [-l [-s]] [-q] [-n] [--bare]
 	  [-o <name>] [-u <upload-pack>] [--reference <repository>]
-	  <repository> [<directory>]
+	  [--use-separate-remote] <repository> [<directory>]
 
 DESCRIPTION
 -----------
@@ -73,7 +73,7 @@ OPTIONS
 	files in `<directory>/.git`, make the `<directory>`
 	itself the `$GIT_DIR`. This implies `-n` option.  When
 	this option is used, neither the `origin` branch nor the
-	default	`remotes/origin` file is created.
+	default `remotes/origin` file is created.
 
 -o <name>::
 	Instead of using the branch name 'origin' to keep track
@@ -94,12 +94,17 @@ OPTIONS
 	if unset the templates are taken from the installation
 	defined default, typically `/usr/share/git-core/templates`.
 
+--use-separate-remote::
+	Save remotes heads under `$GIT_DIR/remotes/origin/' instead
+	of `$GIT_DIR/refs/heads/'.  Only the master branch is saved
+	in the latter.
+
 <repository>::
 	The (possibly remote) repository to clone from.  It can
 	be any URL git-fetch supports.
 
 <directory>::
-	The name of a new directory to clone into.  The	"humanish"
+	The name of a new directory to clone into.  The "humanish"
 	part of the source repository is used if no directory is
 	explicitly given ("repo" for "/path/to/repo.git" and "foo"
 	for "host.xz:foo/.git").  Cloning into an existing directory

builtin-rm.c

@@ -83,15 +83,15 @@ int cmd_rm(int argc, const char **argv, char **envp)
 		}
 		die(builtin_rm_usage);
 	}
-	pathspec = get_pathspec(prefix, argv + i);
+	if (argc <= i)
+		usage(builtin_rm_usage);
 
+	pathspec = get_pathspec(prefix, argv + i);
 	seen = NULL;
-	if (pathspec) {
-		for (i = 0; pathspec[i] ; i++)
-			/* nothing */;
-		seen = xmalloc(i);
-		memset(seen, 0, i);
-	}
+	for (i = 0; pathspec[i] ; i++)
+		/* nothing */;
+	seen = xmalloc(i);
+	memset(seen, 0, i);
 
 	for (i = 0; i < active_nr; i++) {
 		struct cache_entry *ce = active_cache[i];
@@ -121,6 +121,9 @@ int cmd_rm(int argc, const char **argv, char **envp)
 		cache_tree_invalidate_path(active_cache_tree, path);
 	}
 
+	if (show_only)
+		return 0;
+
 	/*
 	 * Then, if we used "-f", remove the filenames from the
 	 * workspace. If we fail to remove the first one, we

connect.c

@@ -657,6 +657,8 @@ int git_connect(int fd[2], char *url, const char *prog)
 	if (pipe(pipefd[0]) < 0 || pipe(pipefd[1]) < 0)
 		die("unable to create pipe pair for communication");
 	pid = fork();
+	if (pid < 0)
+		die("unable to fork");
 	if (!pid) {
 		snprintf(command, sizeof(command), "%s %s", prog,
 			 sq_quote(path));

date.c

@@ -369,7 +369,7 @@ static int match_digit(const char *date, struct tm *tm, int *offset, int *tm_gmt
 
 	/* Four-digit year or a timezone? */
 	if (n == 4) {
-		if (num <= 1200 && *offset == -1) {
+		if (num <= 1400 && *offset == -1) {
 			unsigned int minutes = num % 100;
 			unsigned int hours = num / 100;
 			*offset = hours*60 + minutes;

git-clone.sh

@@ -391,11 +391,16 @@ Pull: refs/heads/$head_points_at:$origin_track" &&
 		(cd "$GIT_DIR/$remote_top" && find . -type f -print) |
 		while read dotslref
 		do
-			name=`expr "$dotslref" : './\(.*\)'` &&
-			test "$use_separate_remote" = '' && {
-				test "$head_points_at" = "$name" ||
-				test "$origin" = "$name"
-			} ||
+			name=`expr "$dotslref" : './\(.*\)'`
+			if test "z$head_points_at" = "z$name"
+			then
+				continue
+			fi
+			if test "$use_separate_remote" = '' &&
+			   test "z$origin" = "z$name"
+			then
+				continue
+			fi
 			echo "Pull: refs/heads/${name}:$remote_top/${name}"
 		done >>"$GIT_DIR/remotes/$origin" &&
 		case "$use_separate_remote" in

imap-send.c

@@ -924,6 +924,7 @@ imap_open_store( imap_server_conf_t *srvc )
 	struct hostent *he;
 	struct sockaddr_in addr;
 	int s, a[2], preauth;
+	pid_t pid;
 
 	ctx = xcalloc( sizeof(*ctx), 1 );
 
@@ -941,7 +942,10 @@ imap_open_store( imap_server_conf_t *srvc )
 			exit( 1 );
 		}
 
-		if (fork() == 0) {
+		pid = fork();
+		if (pid < 0)
+			_exit( 127 );
+		if (!pid) {
 			if (dup2( a[0], 0 ) == -1 || dup2( a[0], 1 ) == -1)
 				_exit( 127 );
 			close( a[0] );

rsh.c

@@ -48,6 +48,7 @@ int setup_connection(int *fd_in, int *fd_out, const char *remote_prog,
 	int sizen;
 	int of;
 	int i;
+	pid_t pid;
 
 	if (!strcmp(url, "-")) {
 		*fd_in = 0;
@@ -91,7 +92,10 @@ int setup_connection(int *fd_in, int *fd_out, const char *remote_prog,
 	if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv))
 		return error("Couldn't create socket");
 
-	if (!fork()) {
+	pid = fork();
+	if (pid < 0)
+		return error("Couldn't fork");
+	if (!pid) {
 		const char *ssh, *ssh_basename;
 		ssh = getenv("GIT_SSH");
 		if (!ssh) ssh = "ssh";