patch 8.1.0094: help text "usage:" is not capatalized

Problem:    Help text "usage:" is not capatalized.
Solution:   Make it "Usage:". (closes #3044)

src/main.c

@@ -3269,7 +3269,7 @@ usage(void)
 #endif
 
     mch_msg(longVersion);
-    mch_msg(_("\n\nusage:"));
+    mch_msg(_("\n\nUsage:"));
     for (i = 0; ; ++i)
     {
 	mch_msg(_(" vim [arguments] "));

src/version.c

@@ -761,6 +761,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    94,
 /**/
     93,
 /**/