documentation: fix whitespace issues

Get rid of extraneous whitespace, replace tab-after-fullstop with
space, etc.

Signed-off-by: Elijah Newren <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: newren

Documentation/git-blame.txt

@@ -170,7 +170,7 @@ which limits the annotation to the body of the `hello` subroutine.
 
 When you are not interested in changes older than version
 v2.6.18, or changes older than 3 weeks, you can use revision
-range specifiers  similar to 'git rev-list':
+range specifiers similar to 'git rev-list':
 
 	git blame v2.6.18.. -- foo
 	git blame --since=3.weeks -- foo

Documentation/git-check-ignore.txt

@@ -50,7 +50,7 @@ linkgit:gitignore[5].
 	with a NUL character instead of a linefeed character.
 
 -n, --non-matching::
-	Show given paths which don't match any pattern.	 This only
+	Show given paths which don't match any pattern.  This only
 	makes sense when `--verbose` is enabled, otherwise it would
 	not be possible to distinguish between paths which match a
 	pattern and those which don't.