[flang] Fix typo in comment

flang/lib/Optimizer/Transforms/LoopVersioning.cpp

 //===- LoopVersioning.cpp -------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
 /// \file
 /// This pass looks for loops iterating over assumed-shape arrays, that can
 /// be optimized by "guessing" that the stride is element-sized.
 ///
-/// This is done by createing two versions of the same loop: one which assumes
+/// This is done by creating two versions of the same loop: one which assumes
 /// that the elements are contiguous (stride == size of element), and one that
 /// is the original generic loop.
 ///
 /// As a side-effect of the assumed element size stride, the array is also
 /// flattened to make it a 1D array - this is because the internal array
 /// structure must be either 1D or have known sizes in all dimensions - and at
 /// least one of the dimensions here is already unknown.
 ///