Documentation: management-style: Fix formatting of emphsized word

Commit 7f2b3c65b9a1 ("Documentation/ManagementStyle: convert it to ReST
markup") converted _underlined_ to *emphasized* words, but forgot about
an underscore in this case.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20200303192113.20761-1-j.neuschaefer@gmx.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/process/management-style.rst b/Documentation/process/management-style.rst
index 186753f..dfbc69b 100644
--- a/Documentation/process/management-style.rst
+++ b/Documentation/process/management-style.rst
@@ -227,7 +227,7 @@
 out of it.
 
 Then make the developer who really screwed up (if you can find them) know
-**in_private** that they screwed up.  Not just so they can avoid it in the
+**in private** that they screwed up.  Not just so they can avoid it in the
 future, but so that they know they owe you one.  And, perhaps even more
 importantly, they're also likely the person who can fix it.  Because, let's
 face it, it sure ain't you.