maint: use EXIT_SUCCESS and EXIT_FAILURE, not 0 and 1 to exit

Convert all uses automatically, via these two commands:
git grep -l '\<exit *(1)' \
  | grep -vEf .x-sc_prohibit_magic_number_exit \
  | xargs --no-run-if-empty \
    perl -pi -e 's/\b(exit ?)\(1\)/$1(EXIT_FAILURE)/'
git grep -l '\<exit *(0)' \
  | grep -vEf .x-sc_prohibit_magic_number_exit \
  | xargs --no-run-if-empty \
  perl -pi -e 's/\b(exit ?)\(0\)/$1(EXIT_SUCCESS)/'
* .x-sc_prohibit_magic_number_exit: New file.

Edit (RWMJ): Don't change Java code.

2 files changed, 9 insertions, 9 deletions

diff --git a/examples/hello.c b/examples/hello.c
index 8b36ed44..b4d5d8c6 100644
--- a/examples/hello.c
+++ b/examples/hello.c
@@ -19,18 +19,18 @@ main (int argc, char *argv[])
 
   if (argc != 3 || access (argv[1], F_OK) != 0) {
     fprintf (stderr, "Usage: hello disk-image partition\n");
-    exit (1);
+    exit (EXIT_FAILURE);
   }
 
-  if (!(g = guestfs_create ())) exit (1);
+  if (!(g = guestfs_create ())) exit (EXIT_FAILURE);
 
-  if (guestfs_add_drive (g, argv[1]) == -1) exit (1);
+  if (guestfs_add_drive (g, argv[1]) == -1) exit (EXIT_FAILURE);
 
-  if (guestfs_launch (g) == -1) exit (1);
+  if (guestfs_launch (g) == -1) exit (EXIT_FAILURE);
 
-  if (guestfs_mount (g, argv[2], "/") == -1) exit (1);
+  if (guestfs_mount (g, argv[2], "/") == -1) exit (EXIT_FAILURE);
 
-  if (guestfs_touch (g, "/hello") == -1) exit (1);
+  if (guestfs_touch (g, "/hello") == -1) exit (EXIT_FAILURE);
 
   guestfs_sync (g);
   guestfs_close (g);
diff --git a/examples/to-xml.c b/examples/to-xml.c
index 6d0a1dfb..537ae915 100644
--- a/examples/to-xml.c
+++ b/examples/to-xml.c
@@ -25,7 +25,7 @@
  * to stderr already.
  */
 #define CALL(call,errcode)			\
-  if ((call) == (errcode)) exit (1);
+  if ((call) == (errcode)) exit (EXIT_FAILURE);
 
 static void display_partition (guestfs_h *g, const char *dev);
 static void display_partitions (guestfs_h *g, const char *dev);
@@ -39,12 +39,12 @@ main (int argc, char *argv[])
 
   if (argc < 2 || access (argv[1], F_OK) != 0) {
     fprintf (stderr, "Usage: to-xml guest.img [guest.img ...]\n");
-    exit (1);
+    exit (EXIT_FAILURE);
   }
 
   if (!(g = guestfs_create ())) {
     fprintf (stderr, "Cannot create libguestfs handle.\n");
-    exit (1);
+    exit (EXIT_FAILURE);
   }
 
   for (i = 1; i < argc; ++i)