[PATCH] block: Remove trailing newline in format used by error_report API

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

The error_report API doesn't want trailing newline characters.
Remove it, to avoid and error when moving the code around:

  ERROR: Error messages should not contain newlines

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 block.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block.c b/block.c
index 1bdb9c679d..e466d15914 100644
--- a/block.c
+++ b/block.c
@@ -5994,7 +5994,7 @@ void bdrv_img_create(const char *filename, const char *fmt,
             /* Couldn't open BS, but we have a size, so it's nonfatal */
             warn_reportf_err(local_err,
                             "Could not verify backing image. "
-                            "This may become an error in future versions.\n");
+                            "This may become an error in future versions.");
             local_err = NULL;
         } else if (!bs) {
             /* Couldn't open bs, do not have size */
-- 
2.21.1