util-lib: split out umask-related code to umask-util.h

src/shared/ask-password-api.c

@@ -45,6 +45,7 @@
 #include "string-util.h"
 #include "strv.h"
 #include "terminal-util.h"
+#include "umask-util.h"
 #include "util.h"
 
 #define KEYRING_TIMEOUT_USEC ((5 * USEC_PER_MINUTE) / 2)

src/shared/base-filesystem.c

@@ -24,12 +24,13 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
+#include "base-filesystem.h"
+#include "fd-util.h"
 #include "log.h"
 #include "macro.h"
 #include "string-util.h"
+#include "umask-util.h"
 #include "util.h"
-#include "base-filesystem.h"
-#include "fd-util.h"
 
 typedef struct BaseFilesystem {
         const char *dir;