Fix typo in man page for git new-branch

The option is --upstream, not --uptstream.

R=sergiyb@chromium.org

Change-Id: I007dfecae9ba576d65bbb8b96c3f2296d2152a23
Reviewed-on: https://chromium-review.googlesource.com/c/1350747
Auto-Submit: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>

man/html/git-new-branch.html

@@ -790,7 +790,7 @@ new-branch --upstream_current &lt;branch_name&gt;</code>.</p></div>
 </p>
 </dd>
 <dt class="hdlist1">
---uptstream &lt;REF&gt;
+--upstream &lt;REF&gt;
 </dt>
 <dd>
 <p>

man/man1/git-new-branch.1

@@ -50,7 +50,7 @@ Conceptually, each branch in your repo represents one \fIChange List (CL)\fR\&.
 Set the tracking (upstream) branch to the currently\-checked\-out branch\&.
 .RE
 .PP
-\-\-uptstream <REF>
+\-\-upstream <REF>
 .RS 4
 Set the tracking (upstream) branch to <REF>\&. <REF> may be a local branch, remote branch, or a tag\&.
 .RE

man/src/git-new-branch.txt

@@ -34,7 +34,7 @@ OPTIONS
 --upstream_current::
   Set the tracking (upstream) branch to the currently-checked-out branch.
 
---uptstream <REF>::
+--upstream <REF>::
   Set the tracking (upstream) branch to <REF>. <REF> may be a local branch,
   remote branch, or a tag.