help: fix grammar in help text

Bug: https://crbug.com/gerrit/14838
Change-Id: Ic5000921ba9a1baa086153630ebbb429e3d17642
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/323515
Reviewed-by: Jack Neus <jackneus@google.com>
Tested-by: Mike Frysinger <vapier@google.com>
diff --git a/man/repo.1 b/man/repo.1
index 4aa7638..40062cf 100644
--- a/man/repo.1
+++ b/man/repo.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man.
-.TH REPO "1" "July 2021" "repo" "Repo Manual"
+.TH REPO "1" "November 2021" "repo" "Repo Manual"
 .SH NAME
 repo \- repository management tool built on top of git
 .SH SYNOPSIS
@@ -43,7 +43,7 @@
 .TP
 \fB\-\-git\-trace2\-event\-log\fR=\fI\,GIT_TRACE2_EVENT_LOG\/\fR
 directory to write git trace2 event log to
-.SS "The complete list of recognized repo commands are:"
+.SS "The complete list of recognized repo commands is:"
 .TP
 abandon
 Permanently abandon a development branch
diff --git a/subcmds/help.py b/subcmds/help.py
index 1a60ef4..1ad391d 100644
--- a/subcmds/help.py
+++ b/subcmds/help.py
@@ -53,7 +53,7 @@
     self.PrintAllCommandsBody()
 
   def PrintAllCommandsBody(self):
-    print('The complete list of recognized repo commands are:')
+    print('The complete list of recognized repo commands is:')
     commandNames = list(sorted(all_commands))
     self._PrintCommands(commandNames)
     print("See 'repo help <command>' for more information on a "