Update runtime files

runtime/doc/repeat.txt

@@ -1,4 +1,4 @@
-*repeat.txt*    For Vim version 8.1.  Last change: 2019 May 05
+*repeat.txt*    For Vim version 8.1.  Last change: 2019 May 07
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -124,11 +124,11 @@ q{0-9a-zA-Z"}		Record typed characters into register {0-9a-zA-Z"}
 			used for |y| and |p| the result is most likely not
 			what is expected, because the put will paste the
 			recorded macro and the yank will overwrite the
-			recorded macro. {Vi: no recording}
+			recorded macro.
 
 q			Stops recording.  (Implementation note: The 'q' that
 			stops recording is not stored in the register, unless
-			it was the result of a mapping)  {Vi: no recording}
+			it was the result of a mapping)
 
 							*@*
 @{0-9a-z".=*+}		Execute the contents of register {0-9a-z".=*+} [count]
@@ -140,7 +140,7 @@ q			Stops recording.  (Implementation note: The 'q' that
 			applies.
 			For "@=" you are prompted to enter an expression.  The
 			result of the expression is then executed.
-			See also |@:|.  {Vi: only named registers}
+			See also |@:|.
 
 							*@@* *E748*
 @@			Repeat the previous @{0-9a-z":*} [count] times.
@@ -158,8 +158,8 @@ q			Stops recording.  (Implementation note: The 'q' that
 			result of evaluating the expression is executed as an
 			Ex command.
 			Mappings are not recognized in these commands.
-			{Vi: only in some versions} Future: Will execute the
-			register for each line in the address range.
+			Future: Will execute the register for each line in the
+			address range.
 
 							*:@:*
 :[addr]@:		Repeat last command-line.  First set cursor at line