patch 9.0.0848: help item for --log argument is not aligned nicely

Problem:    Help item for --log argument is not aligned nicely.
Solution:   Add a Tab. (Ken Takata, closes #11521)
diff --git a/src/main.c b/src/main.c
index 389a202..16a47b3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3588,7 +3588,7 @@
     main_msg(_("--startuptime <file>\tWrite startup timing messages to <file>"));
 #endif
 #ifdef FEAT_JOB_CHANNEL
-    main_msg(_("--log <file>\tStart logging to <file> early"));
+    main_msg(_("--log <file>\t\tStart logging to <file> early"));
 #endif
 #ifdef FEAT_VIMINFO
     main_msg(_("-i <viminfo>\t\tUse <viminfo> instead of .viminfo"));