Avoid fall-through in test-container if execlp fails.

One of the implicit-fallthrough warnings from compiling glibc with
-Wextra appears to indicate an actual bug: the test-container code
could fall through inappropriately if execlp returns (which only
occurs on error).  This patch adds appropriate error handling in this
case to avoid that fall-through.

Tested for x86_64.

	* support/test-container.c (recursive_remove): Use FAIL_EXIT1 if
	execlp returns.

1 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 56f30076dc..4279eeedb3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-02-13  Joseph Myers  <joseph@codesourcery.com>
+
+	* support/test-container.c (recursive_remove): Use FAIL_EXIT1 if
+	execlp returns.
+
 2019-02-12  Wilco Dijkstra  <wdijkstr@arm.com>
 
 	* benchtests/bench-strcasecmp.c (stupid_strcasecmp): Remove.