fix typo

Author: mertcandav

std/builtin.jule

@@ -133,7 +133,7 @@ fn make(T, ...V): T
 //	So copy operation will directly affect the x array.
 //
 //	This only applies to the last sliced array.
-//	Previous slicings may result in memory allocation, and changes may not be reflected.
+//	Previous slicing may result in memory allocation, and changes may not be reflected.
 //
 //	For example:
 //