quiet gcc 4.4.7 warning about saveptr use before initialization

The recent change to use strtok_r causes a build warning with this older gcc version, so initialize saveptr to NULL to quiet the compiler and unbreak the build. There was no warning with gcc 4.7.2 that I originally tested with. Signed-off-by: Dwight Engen <dwight.engen@oracle.com> Acked-by: Stéphane Graber <stgraber@ubuntu.com>

quiet gcc 4.4.7 warning about saveptr use before initialization
2c7d90ac · Dwight Engen · Stéphane Graber · 98663823 · 2c7d90ac
Commit 2c7d90ac authored Apr 16, 2013 by Dwight Engen Committed by Stéphane Graber Apr 16, 2013
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conf.c src/lxc/conf.c +1 -1

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--- a/src/lxc/conf.c
+++ b/src/lxc/conf.c
@@ -759,7 +759,7 @@ static int setup_tty(const struct lxc_rootfs *rootfs,
 static int setup_rootfs_pivot_root_cb(char *buffer, void *data)
 {
 	struct lxc_list	*mountlist, *listentry, *iterator;
-	char *pivotdir, *mountpoint, *mountentry, *saveptr;
+	char *pivotdir, *mountpoint, *mountentry, *saveptr = NULL;
 	int found;
 	void **cbparm;