rename --exec to --upload-pack for fetch-pack and peek-remote

Just some option name disambiguation.  This is the counter part to
commit d23842fd which made a similar change for push and send-pack.

--exec continues to work.

Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git-fetch-pack.txt

@@ -8,7 +8,7 @@ git-fetch-pack - Receive missing objects from another repository
 
 SYNOPSIS
 --------
-'git-fetch-pack' [--all] [--quiet|-q] [--keep|-k] [--thin] [--exec=<git-upload-pack>] [--depth=<n>] [-v] [<host>:]<directory> [<refs>...]
+'git-fetch-pack' [--all] [--quiet|-q] [--keep|-k] [--thin] [--upload-pack=<git-upload-pack>] [--depth=<n>] [-v] [<host>:]<directory> [<refs>...]
 
 DESCRIPTION
 -----------
@@ -45,7 +45,7 @@ OPTIONS
 	Spend extra cycles to minimize the number of objects to be sent.
 	Use it on slower connection.
 
-\--exec=<git-upload-pack>::
+\--upload-pack=<git-upload-pack>::
 	Use this to specify the path to 'git-upload-pack' on the
 	remote side, if is not found on your $PATH.
 	Installations of sshd ignores the user's environment
@@ -57,6 +57,9 @@ OPTIONS
 	shells by having a lean .bashrc file (they set most of
 	the things up in .bash_profile).
 
+\--exec=<git-upload-pack>::
+	Same as \--upload-pack=<git-upload-pack>.
+
 \--depth=<n>::
 	Limit fetching to ancestor-chains not longer than n.
 

Documentation/git-peek-remote.txt

@@ -8,7 +8,7 @@ git-peek-remote - List the references in a remote repository
 
 SYNOPSIS
 --------
-'git-peek-remote' [--exec=<git-upload-pack>] [<host>:]<directory>
+'git-peek-remote' [--upload-pack=<git-upload-pack>] [<host>:]<directory>
 
 DESCRIPTION
 -----------
@@ -17,7 +17,7 @@ stores them in the local repository under the same name.
 
 OPTIONS
 -------
---exec=<git-upload-pack>::
+\--upload-pack=<git-upload-pack>::
 	Use this to specify the path to 'git-upload-pack' on the
 	remote side, if it is not found on your $PATH. Some
 	installations of sshd ignores the user's environment
@@ -29,6 +29,9 @@ OPTIONS
 	shells, but prefer having a lean .bashrc file (they set most of
 	the things up in .bash_profile).
 
+\--exec=<git-upload-pack>::
+	Same \--upload-pack=<git-upload-pack>.
+
 <host>::
 	A remote host that houses the repository.  When this
 	part is specified, 'git-upload-pack' is invoked via

fetch-pack.c

@@ -12,8 +12,8 @@ static int verbose;
 static int fetch_all;
 static int depth;
 static const char fetch_pack_usage[] =
-"git-fetch-pack [--all] [--quiet|-q] [--keep|-k] [--thin] [--exec=<git-upload-pack>] [--depth=<n>] [-v] [<host>:]<directory> [<refs>...]";
-static const char *exec = "git-upload-pack";
+"git-fetch-pack [--all] [--quiet|-q] [--keep|-k] [--thin] [--upload-pack=<git-upload-pack>] [--depth=<n>] [-v] [<host>:]<directory> [<refs>...]";
+static const char *uploadpack = "git-upload-pack";
 
 #define COMPLETE	(1U << 0)
 #define COMMON		(1U << 1)
@@ -643,8 +643,12 @@ int main(int argc, char **argv)
 		char *arg = argv[i];
 
 		if (*arg == '-') {
+			if (!strncmp("--upload-pack=", arg, 14)) {
+				uploadpack = arg + 14;
+				continue;
+			}
 			if (!strncmp("--exec=", arg, 7)) {
-				exec = arg + 7;
+				uploadpack = arg + 7;
 				continue;
 			}
 			if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
@@ -682,7 +686,7 @@ int main(int argc, char **argv)
 	}
 	if (!dest)
 		usage(fetch_pack_usage);
-	pid = git_connect(fd, dest, exec);
+	pid = git_connect(fd, dest, uploadpack);
 	if (pid < 0)
 		return 1;
 	if (heads && nr_heads)

peek-remote.c

@@ -3,8 +3,8 @@
 #include "pkt-line.h"
 
 static const char peek_remote_usage[] =
-"git-peek-remote [--exec=upload-pack] [host:]directory";
-static const char *exec = "git-upload-pack";
+"git-peek-remote [--upload-pack=<git-upload-pack>] [<host>:]<directory>";
+static const char *uploadpack = "git-upload-pack";
 
 static int peek_remote(int fd[2], unsigned flags)
 {
@@ -35,8 +35,12 @@ int main(int argc, char **argv)
 		char *arg = argv[i];
 
 		if (*arg == '-') {
+			if (!strncmp("--upload-pack=", arg, 14)) {
+				uploadpack = arg + 14;
+				continue;
+			}
 			if (!strncmp("--exec=", arg, 7)) {
-				exec = arg + 7;
+				uploadpack = arg + 7;
 				continue;
 			}
 			if (!strcmp("--tags", arg)) {
@@ -60,7 +64,7 @@ int main(int argc, char **argv)
 	if (!dest || i != argc - 1)
 		usage(peek_remote_usage);
 
-	pid = git_connect(fd, dest, exec);
+	pid = git_connect(fd, dest, uploadpack);
 	if (pid < 0)
 		return 1;
 	ret = peek_remote(fd, flags);