Add missing limits.h include

Fixes build with musl libc that does not include limits.h indirectly via
other headers.

evtest.c: In function ‘scan_devices’:
evtest.c:886:14: error: ‘PATH_MAX’ undeclared (first use in this function); did you mean  INT8_MAX’?
   char fname[PATH_MAX];
              ^~~~~~~~

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/evtest.c b/evtest.c
index 37d4f85..548c203 100644
--- a/evtest.c
+++ b/evtest.c
@@ -56,6 +56,7 @@
 #include <getopt.h>
 #include <ctype.h>
 #include <signal.h>
+#include <limits.h>
 #include <sys/time.h>
 #include <sys/types.h>
 #include <unistd.h>