add an example for log -R to got.1
diff --git a/got/got.1 b/got/got.1
index f0afe08..6e66776 100644
--- a/got/got.1
+++ b/got/got.1
@@ -1927,6 +1927,12 @@ via the repository's HEAD reference, respectively:
.Pp
.Dl $ got log -p -l 3
.Pp
+As above, but display patches in the order in which
+.Xr patch 1
+could apply them in sequence:
+.Pp
+.Dl $ got log -p -l 3 -R
+.Pp
In a work tree or a git repository directory, log the history of a subdirectory:
.Pp
.Dl $ got log sys/uvm