Update english sources of docs to v2.21.0

Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>

Update english sources of docs to v2.21.0
221cdfc4 · Jean-Noël Avila · 51133766 · 221cdfc4 · 221cdfc4 · 221cdfc4
Commit 221cdfc4 authored 6 years ago by Jean-Noël Avila
--- a/en/git-fast-export.txt
+++ b/en/git-fast-export.txt
--- a/en/git-fast-import.txt
+++ b/en/git-fast-import.txt
--- a/en/git-fetch-pack.txt
+++ b/en/git-fetch-pack.txt
@@ -88,7 +88,7 @@ be in a separate packet, and the list must end with a flush packet.
 	infinite even if there is an ancestor-chain that long.

 --shallow-since=<date>::
-	Deepen or shorten the history of a shallow'repository to
+	Deepen or shorten the history of a shallow repository to
 	include all reachable commits after <date>.

 --shallow-exclude=<revision>::

--- a/en/git-fetch.txt
+++ b/en/git-fetch.txt
--- a/en/git-filter-branch.txt
+++ b/en/git-filter-branch.txt
--- a/en/git-fmt-merge-msg.txt
+++ b/en/git-fmt-merge-msg.txt
--- a/en/git-for-each-ref.txt
+++ b/en/git-for-each-ref.txt
--- a/en/git-format-patch.txt
+++ b/en/git-format-patch.txt
--- a/en/git-fsck.txt
+++ b/en/git-fsck.txt
--- a/en/git-gc.txt
+++ b/en/git-gc.txt
--- a/en/git-grep.txt
+++ b/en/git-grep.txt
--- a/en/git-help.txt
+++ b/en/git-help.txt
--- a/en/git-http-fetch.txt
+++ b/en/git-http-fetch.txt
--- a/en/git-http-push.txt
+++ b/en/git-http-push.txt
@@ -55,7 +55,7 @@ OPTIONS
 	The remote refs to update.


-Specifying the Refs
+SPECIFYING THE REFS
 -------------------

 A '<ref>' specification can be either a single pattern, or a pair

--- a/en/git-imap-send.txt
+++ b/en/git-imap-send.txt
--- a/en/git-index-pack.txt
+++ b/en/git-index-pack.txt
--- a/en/git-init.txt
+++ b/en/git-init.txt
--- a/en/git-instaweb.txt
+++ b/en/git-instaweb.txt
--- a/en/git-interpret-trailers.txt
+++ b/en/git-interpret-trailers.txt
--- a/en/git-log.txt
+++ b/en/git-log.txt