lib/attr.h, lib/, src/: Move attributes to new header file

Signed-off-by: Alejandro Colomar <alx@kernel.org>

src/expiry.c

@@ -16,6 +16,8 @@
 #include <stdio.h>
 #include <sys/types.h>
 #include <getopt.h>
+
+#include "attr.h"
 #include "defines.h"
 #include "prototypes.h"
 /*@-exitarg@*/

src/gpasswd.c

@@ -22,6 +22,7 @@
 
 #include "agetpass.h"
 #include "alloc.h"
+#include "attr.h"
 #include "defines.h"
 #include "groupio.h"
 #include "memzero.h"

src/grpconv.c

@@ -26,6 +26,7 @@
 #include <unistd.h>
 #include <getopt.h>
 
+#include "attr.h"
 #include "nscd.h"
 #include "sssd.h"
 #include "prototypes.h"

src/grpunconv.c

@@ -24,6 +24,8 @@
 #include <unistd.h>
 #include <grp.h>
 #include <getopt.h>
+
+#include "attr.h"
 #include "nscd.h"
 #include "sssd.h"
 #include "prototypes.h"

src/login.c

@@ -26,6 +26,7 @@
 #include <assert.h>
 
 #include "alloc.h"
+#include "attr.h"
 #include "defines.h"
 #include "faillog.h"
 #include "failure.h"

src/su.c

@@ -47,6 +47,7 @@
 #endif				/* !USE_PAM */
 
 #include "alloc.h"
+#include "attr.h"
 #include "prototypes.h"
 #include "defines.h"
 #include "pwauth.h"

src/sulogin.c

@@ -18,6 +18,7 @@
 #include <sys/ioctl.h>
 
 #include "agetpass.h"
+#include "attr.h"
 #include "defines.h"
 #include "getdef.h"
 #include "memzero.h"