diff --git a/tools/tools/git/git-arc.1 b/tools/tools/git/git-arc.1
--- a/tools/tools/git/git-arc.1
+++ b/tools/tools/git/git-arc.1
@@ -24,7 +24,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd November 17, 2021
+.Dd October 12, 2022
 .Dt GIT-ARC 1
 .Os
 .Sh NAME
@@ -48,7 +48,7 @@
 .Op Ar commit Ns | Ns Ar commit-range
 .Nm
 .Cm update
-.Op Ar commit Ns | Ns Ar commit-range Oc
+.Op Ar commit Ns | Ns Ar commit-range
 .Sh DESCRIPTION
 The
 .Nm
@@ -61,7 +61,7 @@
 Differential Revisions, and the Differential Revision title must match
 the summary line of the corresponding commit.
 In particular, the commit summaries must be unique across all open
-Differential Revisions authored the submitter.
+Differential Revisions authored by the submitter.
 .Pp
 The first parameter must be a verb.
 The available verbs are:
@@ -78,7 +78,7 @@
 Argument(s) must be existing Phabricator user or group.
 .It Fl r Ar subscriber
 Add one or more subscribers, separated by commas, to revision(s) being created.
-Argument(s) must be existing Phabricator user or group.
+Each argument must be an existing Phabricator user or group.
 .It Fl p Ar parent
 Specify the parent of the first commit in the list.
 This is useful when adding more commits on top of the already existing
@@ -87,7 +87,7 @@
 .It Cm list
 Print the associated Differential Revisions for the specified commits.
 .It Cm patch
-Try to apply a patch from a Differential revision to the currently
+Try to apply a patch from a Differential Revision to the currently
 checked out tree.
 .It Cm stage
 Prepare a series of commits to be pushed to the upstream
@@ -104,7 +104,7 @@
 Synchronize the Differential Revisions associated with the
 specified commits.
 Currently only the diff is updated; the review description and other
-metadata is not synchronized.
+metadata are not synchronized.
 .El
 .Sh CONFIGURATION
 These are manipulated by
@@ -141,14 +141,14 @@
 .Sh EXAMPLES
 The typical end-to-end usage looks something like this.
 .Pp
-Commit changes with a message and create a Differential review:
+Commit changes with a message and create a Differential Review:
 .Bd -literal -offset indent
 $ git commit -m "kern: Rewrite in Rust"
 $ git arc create HEAD
 .Ed
 .Pp
 Make changes to the diff based on review feedback, then amend the
-changes to the existing commit and update the Differential review:
+changes to the existing commit and update the Differential Review:
 .Bd -literal -offset indent
 $ git commit --amend
 $ git arc update HEAD