doc: correct minor wording issues

* use imperative mood for consistency in options descriptions
* add missing parenthesis
* reword verbose phrase in git-repack.adoc

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

Author: jnavila

Documentation/git-rebase.adoc

@@ -87,7 +87,7 @@ of the to-be-rebased branch. However, `ORIG_HEAD` is not guaranteed to still
 point to that commit at the end of the rebase if other commands that change
 `ORIG_HEAD` (like `git reset`) are used during the rebase. The previous branch
 tip, however, is accessible using the reflog of the current branch (i.e. `@{1}`,
-see linkgit:gitrevisions[7].
+see linkgit:gitrevisions[7]).
 
 TRANSPLANTING A TOPIC BRANCH WITH --ONTO
 ----------------------------------------

Documentation/git-repack.adoc

@@ -77,14 +77,14 @@ to the new separate pack will be written.
 	Only useful with `--cruft -d`.
 
 --max-cruft-size=<n>::
-	Overrides `--max-pack-size` for cruft packs. Inherits the value of
+	Override `--max-pack-size` for cruft packs. Inherits the value of
 	`--max-pack-size` (if any) by default. See the documentation for
 	`--max-pack-size` for more details.
 
 --combine-cruft-below-size=<n>::
 	When generating cruft packs without pruning, only repack
-	existing cruft packs whose size is strictly less than `<n>`,
-	where `<n>` represents a number of bytes, which can optionally
+	existing cruft packs whose size is strictly less than `<n>`
+	bytes, which can optionally
 	be suffixed with "k", "m", or "g". Cruft packs whose size is
 	greater than or equal to `<n>` are left as-is and not repacked.
 	Useful when you want to avoid repacking large cruft pack(s) in

Documentation/git-send-email.adoc

@@ -208,7 +208,7 @@ Sending
 	for your own case. Default is the value of `sendemail.smtpEncryption`.
 
 --smtp-domain=<FQDN>::
-	Specifies the Fully Qualified Domain Name (FQDN) used in the
+	Specify the Fully Qualified Domain Name (FQDN) used in the
 	HELO/EHLO command to the SMTP server.  Some servers require the
 	FQDN to match your IP address.  If not set, `git send-email` attempts
 	to determine your FQDN automatically.  Default is the value of
@@ -245,7 +245,7 @@ a password is obtained using linkgit:git-credential[1].
 	Disable SMTP authentication. Short hand for `--smtp-auth=none`.
 
 --smtp-server=<host>::
-	If set, specifies the outgoing SMTP server to use (e.g.
+	Specify the outgoing SMTP server to use (e.g.
 	`smtp.example.com` or a raw IP address).  If unspecified, and if
 	`--sendmail-cmd` is also unspecified, the default is to search
 	for `sendmail` in `/usr/sbin`, `/usr/lib` and `$PATH` if such a
@@ -258,15 +258,15 @@ command names.  For those use cases, consider using `--sendmail-cmd`
 instead.
 
 --smtp-server-port=<port>::
-	Specifies a port different from the default port (SMTP
+	Specify a port different from the default port (SMTP
 	servers typically listen to smtp port 25, but may also listen to
 	submission port 587, or the common SSL smtp port 465);
 	symbolic port names (e.g. `submission` instead of 587)
 	are also accepted. The port can also be set with the
 	`sendemail.smtpServerPort` configuration variable.
 
 --smtp-server-option=<option>::
-	If set, specifies the outgoing SMTP server option to use.
+	Specify the outgoing SMTP server option to use.
 	Default value can be specified by the `sendemail.smtpServerOption`
 	configuration option.
 +
@@ -347,11 +347,11 @@ Automating
 --no-to::
 --no-cc::
 --no-bcc::
-	Clears any list of `To:`, `Cc:`, `Bcc:` addresses previously
+	Clear any list of `To:`, `Cc:`, `Bcc:` addresses previously
 	set via config.
 
 --no-identity::
-	Clears the previously read value of `sendemail.identity` set
+	Clear the previously read value of `sendemail.identity` set
 	via config, if any.
 
 --to-cmd=<command>::