Introduce sprintflags64 function

This is necessary for the upcoming change of xlat.val type.

* defs.h (sprintflags): Rename to sprintflags64, change type of integer
argument to uint64_t.
(sprintflags): New static inline function.
* util.c (sprintflags): Rename to sprintflags64, change type of integer
argument to uint64_t.  Print it using PRIx64 format.
Based on patch by Jeff Mahoney <jeffm@suse.com>.
diff --git a/defs.h b/defs.h
index d7613f1..33de96f 100644
--- a/defs.h
+++ b/defs.h
@@ -557,7 +557,7 @@
 
 extern void addflags(const struct xlat *, uint64_t);
 extern int printflags(const struct xlat *, int, const char *);
-extern const char *sprintflags(const char *, const struct xlat *, int);
+extern const char *sprintflags64(const char *, const struct xlat *, uint64_t);
 extern const char *sprintmode(int);
 extern const char *sprinttime(time_t);
 extern void dumpiov_in_msghdr(struct tcb *, long, unsigned long);
@@ -666,6 +666,12 @@
 extern void unwind_capture_stacktrace(struct tcb* tcp);
 #endif
 
+static inline const char *
+sprintflags(const char *prefix, const struct xlat *x, unsigned int flags)
+{
+	return sprintflags64(prefix, x, flags);
+}
+
 static inline void
 printxval64(const struct xlat *x, const uint64_t val, const char *dflt)
 {
diff --git a/util.c b/util.c
index e89400a..671f475 100644
--- a/util.c
+++ b/util.c
@@ -322,7 +322,7 @@
  * Return static string.
  */
 const char *
-sprintflags(const char *prefix, const struct xlat *xlat, int flags)
+sprintflags64(const char *prefix, const struct xlat *xlat, uint64_t flags)
 {
 	static char outstr[1024];
 	char *outptr;
@@ -349,7 +349,7 @@
 	if (flags) {
 		if (found)
 			*outptr++ = '|';
-		outptr += sprintf(outptr, "%#x", flags);
+		outptr += sprintf(outptr, "%#" PRIx64, flags);
 	}
 
 	return outstr;