support: Typo and formatting fixes

- Add a newline to the end of error messages in transfer().

- Fixed the name of support_subprocess_init().

(cherry picked from commit 95c68080a3ded882789b1629f872c3ad531efda0)

diff --git a/support/support_capture_subprocess.c b/support/support_capture_subprocess.c

index c13b3e59ece0842e..c475e2004da3183e 100644

--- a/support/support_capture_subprocess.c

+++ b/support/support_capture_subprocess.c

@@ -36,7 +36,7 @@ transfer (const char *what, struct pollfd *pfd, struct xmemstream *stream)

       if (ret < 0)

         {

           support_record_failure ();

-          printf ("error: reading from subprocess %s: %m", what);

+          printf ("error: reading from subprocess %s: %m\n", what);

           pfd->events = 0;

           pfd->revents = 0;

         }

diff --git a/support/support_subprocess.c b/support/support_subprocess.c

index 4573350d775ac4c8..af01827cac81d80c 100644

--- a/support/support_subprocess.c

+++ b/support/support_subprocess.c

@@ -27,7 +27,7 @@

 #include <support/subprocess.h>

 static struct support_subprocess

-support_suprocess_init (void)

+support_subprocess_init (void)

 {

   struct support_subprocess result;

@@ -48,7 +48,7 @@ support_suprocess_init (void)

 struct support_subprocess

 support_subprocess (void (*callback) (void *), void *closure)

 {

-  struct support_subprocess result = support_suprocess_init ();

+  struct support_subprocess result = support_subprocess_init ();

   result.pid = xfork ();

   if (result.pid == 0)

@@ -71,7 +71,7 @@ support_subprocess (void (*callback) (void *), void *closure)

 struct support_subprocess

 support_subprogram (const char *file, char *const argv[])

 {

-  struct support_subprocess result = support_suprocess_init ();

+  struct support_subprocess result = support_subprocess_init ();

   posix_spawn_file_actions_t fa;

   /* posix_spawn_file_actions_init does not fail.  */