btrfs-progs: do interactive fixing of some ambigous typos

Typos fixed manually using the following:

=== Do not change lines below ===
{
 "chain": [],
 "cmd": "codespell -w -i 3 -C 2",
 "exit": 0,
 "extra_inputs": [],
 "inputs": [],
 "outputs": [],
 "pwd": "."
}
^^^ Do not change lines above ^^^

Author: Yaroslav Halchenko <debian@onerussian.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Documentation/dev/Developer-s-FAQ.rst

@@ -56,7 +56,7 @@ as a reply to the mailinglist after you've reviewed a patch. See below.
 Reviewed-by:
 ^^^^^^^^^^^^
 
-The patch has been reviewed and the singed person is putting his hand into
+The patch has been reviewed and the signed person is putting his hand into
 fire. If there's a bug found in this patch, the person is usually a good
 candidate for a CC: of the bugreport.
 
@@ -157,7 +157,7 @@ Controversial changes
 This happens, not every patch gets merged. In the worst case there are not even
 any comments under the patch and it's silently ignored. This depends on many
 factors, most notably \*cough*time*cough*. Examining potential drawbacks or
-forseeing disasters is not an easy job.
+foreseeing disasters is not an easy job.
 
 Let's be more positive, you manage to attract the attention of some developer
 and he says, he does not like the approach of the patch(es).  Better than

Documentation/dev/Development-notes.rst

@@ -239,7 +239,7 @@ Patches
 
 -  additional information
 
-    -  if there's a stack trace relevant for the patch, add it ther (lockdep,
+    -  if there's a stack trace relevant for the patch, add it there (lockdep,
        crash, warning)
     -  steps to reproduce a bug (that will also get turned to a proper fstests
        case)

btrfs-debugfs

@@ -336,7 +336,7 @@ def print_block_groups(mountpoint):
         p_left = args_buffer_size
 
         for _ in range(0, s.args.nr_items):
-            # for each itme, copy the header from the buffer into
+            # for each item, copy the header from the buffer into
             # our header struct
             ctypes.memmove(h, p, header_size)
             p += header_size

convert/source-ext2.c

@@ -62,7 +62,7 @@ static int ext2_open_fs(struct btrfs_convert_context *cctx, const char *name)
 	/*
 	 * We need to know exactly the used space, some RO compat flags like
 	 * BIGALLOC will affect how used space is present.
-	 * So we need manuall check any unsupported RO compat flags
+	 * So we need manually check any unsupported RO compat flags
 	 */
 	ro_feature = ext2_fs->super->s_feature_ro_compat;
 	if (ro_feature & ~EXT2_LIB_FEATURE_RO_COMPAT_SUPP) {

crypto/crc32c.c

@@ -194,7 +194,7 @@ static const uint32_t crc32c_table[256] = {
 };
 
 /*
- * Fallback implementatin. Step through buffer one byte at at time, calculates
+ * Fallback implementation. Step through buffer one byte at at time, calculates
  * reflected crc using table, can accept an unaligned buffer.
  */
 static uint32_t crc32c_ref(uint32_t crc, unsigned char const *data, uint32_t length)