tests: add utime.test

* tests/utime.c: New file.
* tests/utime.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add utime.
(TESTS): Add utime.test.
* tests/.gitignore: Add utime.
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 2e298d6..545bb99 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -44,6 +44,7 @@
 	umovestr \
 	umovestr2 \
 	unix-pair-send-recv \
+	utime \
 	xattr
 
 filter_unavailable_LDFLAGS = -pthread
@@ -95,6 +96,7 @@
 	uid16.test \
 	uid32.test \
 	uio.test \
+	utime.test \
 	xattr.test \
 	count.test \
 	detach-sleeping.test \