file.c: use correct integer-conversion function

The return value of major() and minor() is unsigned int, not dev_t.
So, UINT2NUM() is a better choice than DEVT2NUM().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65319 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

file.c

@@ -572,7 +572,7 @@ static VALUE
 rb_stat_dev_major(VALUE self)
 {
 #if defined(major)
-    return DEVT2NUM(major(get_stat(self)->st_dev));
+    return UINT2NUM(major(get_stat(self)->st_dev));
 #else
     return Qnil;
 #endif
@@ -593,7 +593,7 @@ static VALUE
 rb_stat_dev_minor(VALUE self)
 {
 #if defined(minor)
-    return DEVT2NUM(minor(get_stat(self)->st_dev));
+    return UINT2NUM(minor(get_stat(self)->st_dev));
 #else
     return Qnil;
 #endif
@@ -731,7 +731,7 @@ static VALUE
 rb_stat_rdev_major(VALUE self)
 {
 #if defined(HAVE_STRUCT_STAT_ST_RDEV) && defined(major)
-    return DEVT2NUM(major(get_stat(self)->st_rdev));
+    return UINT2NUM(major(get_stat(self)->st_rdev));
 #else
     return Qnil;
 #endif
@@ -752,7 +752,7 @@ static VALUE
 rb_stat_rdev_minor(VALUE self)
 {
 #if defined(HAVE_STRUCT_STAT_ST_RDEV) && defined(minor)
-    return DEVT2NUM(minor(get_stat(self)->st_rdev));
+    return UINT2NUM(minor(get_stat(self)->st_rdev));
 #else
     return Qnil;
 #endif