Fortran indexing broken

[navinp0304]

As of now fortran indexing is broken because of my previous change.

 Second argument of substring is wrong in my previous commit 

It should be 
cmatch.substring(cmatch.length() - 1, cmatch.length()) instead of  cmatch.substring(cmatch.length() - 1, 1)

@vladak Please review

[vladak]

Looks good, although I am surprised there is no change to the test data.

[vladak]

Looks good, although I am surprised there is no change to the test data.

I mean - if the change broke Fortran, there should be some sort of test case to cover this.