fix: small fixes before review

Author: Victor Wiebe

src/procedures/__tests__/FinalizeSto.ts

@@ -171,7 +171,7 @@ describe('FinalizeSto', () => {
       // Real call
       await target.prepareTransactions();
 
-      // Verifications\
+      // Verifications
       expect(
         addTransactionSpy.getCall(0).calledWith(tieredStoMock.getMockInstance().finalize)
       ).toEqual(true);

src/procedures/__tests__/InvestInTieredSto.ts

@@ -105,7 +105,7 @@ describe('InvestInTieredSto', () => {
     erc20TokenMock = ImportMock.mockClass(contractWrappersModule, 'ERC20');
     erc20TokenMock.mock('balanceOf', Promise.resolve(new BigNumber(10)));
     erc20TokenMock.mock('address', Promise.resolve(erc20TokenAddress));
-    erc20TokenMock.mock('allowance', Promise.resolve(new BigNumber(0)));
+    erc20TokenMock.mock('allowance', Promise.resolve(new BigNumber(10)));
 
     wrappersMock.mock('getERC20TokenWrapper', erc20TokenMock.getMockInstance());