name-rev: update hash descriptions

The documentation for --annotate-stdin and --name-only refers to
SHA-1, although name-rev handles object IDs according to the active
hash algorithm.

Update the descriptions to refer to object IDs instead.

Signed-off-by: jyotish kumar <jyotishkumar725015@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-name-rev.adoc

@@ -43,7 +43,7 @@ OPTIONS
 	List all commits reachable from all refs
 
 --annotate-stdin::
-	Transform stdin by substituting all the 40-character SHA-1
+	Transform stdin by substituting all the full-length object ID
 	hexes (say $hex) with "$hex ($rev_name)".  When used with
 	--name-only, substitute with "$rev_name", omitting $hex
 	altogether. This option was called `--stdin` in older versions
@@ -72,7 +72,7 @@ while its tree object is 70d105cc79e63b81cfdcb08a15297c23e60b07ad
 -----------
 
 --name-only::
-	Instead of printing both the SHA-1 and the name, print only
+	Instead of printing both the object ID and the name, print only
 	the name.  If given with --tags the usual tag prefix of
 	"tags/" is also omitted from the name, matching the output
 	of `git-describe` more closely.