__fish_paginate: do not append a semicolon

I almost always use this on the last/only job in a commandline, so
the semicolon is usually not needed.  We have always added it but I
prefer not dropping it: this feels cleaner because it's what you'd
type without the shortcut.

share/functions/__fish_paginate.fish

@@ -10,7 +10,7 @@ function __fish_paginate -d "Paginate the current command using the users defaul
     end
 
     if commandline -j | not string match -q -r "$cmd *\$"
-        commandline -aj " &| $cmd;"
+        commandline -aj " &| $cmd"
     end
 
 end