write a program that checks a text file for several formatting and punctuation matters. The program ask for the names of both an inputfile and an output file. It then copies all the text from the input file to the output file, but with the following two changes: (1) any string of two or more blank characters is replaced by a single blank; (2) all sentences start with an uppercase letter. All sentences after the first one begin after either a period, a question mark, or an exclamation mark that is followed by one or more whitespace characters.