[PATCH] doc: fix filesystems/porting.rst whitespace

[Tycho Andersen <tycho@tycho.ws>]

If we start with spaces instead of tabs, rst seems to get confused and
italicize some things (presumably because of the `*'s).

Instead, let's switch to using leading tabs as we do elsewhere in the file.

Signed-off-by: Tycho Andersen <tycho@tycho.ws>
---
 Documentation/filesystems/porting.rst | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst
index f18506083ced..898e1d0c6e98 100644
--- a/Documentation/filesystems/porting.rst
+++ b/Documentation/filesystems/porting.rst
@@ -57,12 +57,13 @@ Turn your foo_read_super() into a function that would return 0 in case of
 success and negative number in case of error (-EINVAL unless you have more
 informative error value to report).  Call it foo_fill_super().  Now declare::
 
-  int foo_get_sb(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data, struct vfsmount *mnt)
-  {
-	return get_sb_bdev(fs_type, flags, dev_name, data, foo_fill_super,
-			   mnt);
-  }
+	int foo_get_sb(struct file_system_type *fs_type,
+		       int flags, const char *dev_name, void *data,
+		       struct vfsmount *mnt)
+	{
+		return get_sb_bdev(fs_type, flags, dev_name, data, foo_fill_super,
+				   mnt);
+	}
 
 (or similar with s/bdev/nodev/ or s/bdev/single/, depending on the kind of
 filesystem).
@@ -181,10 +182,10 @@ can be used as examples of very different filesystems.
 iget4() and the read_inode2 callback have been superseded by iget5_locked()
 which has the following prototype::
 
-    struct inode *iget5_locked(struct super_block *sb, unsigned long ino,
-				int (*test)(struct inode *, void *),
-				int (*set)(struct inode *, void *),
-				void *data);
+	struct inode *iget5_locked(struct super_block *sb, unsigned long ino,
+				   int (*test)(struct inode *, void *),
+				   int (*set)(struct inode *, void *),
+				   void *data);
 
 'test' is an additional function that can be used when the inode
 number is not sufficient to identify the actual file object. 'set'
-- 
2.20.1