whitespace needed between macro args and punctuation;

jmc · jmc · commit 98c4291df220 · 2018-07-04T13:27:32.000Z
diff --git a/tmux.1 b/tmux.1
@@ -3458,7 +3458,7 @@ Hooks are managed with these commands:
 .Ar command
 .Xc
 Without
-.Fl R,
+.Fl R ,
 sets (or with
 .Fl u
 unsets) hook
