[PATCH 1/2] getcifsacl, setcifsacl: add missing <linux/limits.h> include for XATTR_SIZE_MAX

[Sam James <sam@gentoo.org>]

Needed to build on musl. It only works on glibc because of transitive includes
(which could break in future).

Example failure:
```
getcifsacl.c: In function 'getcifsacl':
getcifsacl.c:429:24: error: 'XATTR_SIZE_MAX' undeclared (first use in this function)
  429 |         if (bufsize >= XATTR_SIZE_MAX) {
      |                        ^~~~~~~~~~~~~~
```

Bug: https://bugs.gentoo.org/842195
Signed-off-by: Sam James <sam@gentoo.org>
---
 getcifsacl.c | 1 +
 setcifsacl.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/getcifsacl.c b/getcifsacl.c
index 1c01062..d69d40a 100644
--- a/getcifsacl.c
+++ b/getcifsacl.c
@@ -34,6 +34,7 @@
 #include <errno.h>
 #include <limits.h>
 #include <ctype.h>
+#include <linux/limits.h>
 #include <sys/xattr.h>
 #include "cifsacl.h"
 #include "idmap_plugin.h"
diff --git a/setcifsacl.c b/setcifsacl.c
index d832cec..b7079ab 100644
--- a/setcifsacl.c
+++ b/setcifsacl.c
@@ -48,6 +48,7 @@
 #include <errno.h>
 #include <limits.h>
 #include <ctype.h>
+#include <linux/limits.h>
 #include <sys/xattr.h>
 
 #include "cifsacl.h"
-- 
2.37.2