Fix adding trailing spaces when 've' is not empty

The problem appears when cursor is positioned after line end, thus
running p command (even with empty "-register) causes Vim to add spaces
from line end until cursor.

autoload/repeat.vim

@@ -38,7 +38,7 @@ let g:loaded_repeat = 1
 let g:repeat_tick = -1
 
 function! repeat#set(sequence,...)
-    silent exe "norm! \"=''\<CR>p"
+    call setline(line('.'), getline('.'))
     let g:repeat_sequence = a:sequence
     let g:repeat_count = a:0 ? a:1 : v:count
     let g:repeat_tick = b:changedtick