Removed extra space getting added in words method

[sudeeptarlekar]

Issue #2102

Description:

This is patch for the sentence methods in lib, as words sometime returns a word with space in between two characters causing sentence to return more that required number of words even if random word count param as 0 is passed.

Also refactored code and chose map over collect as Ruby best practice.

[tjozwik]

@sudeeptarlekar I think, that we can create another param that would be used for either disabling or enabling open compounds in sentences. There is already a param available in Faker::Books::Lovecraft.words and Faker::Hipster.words that allows us to decide if we are also using open compounds as words or not, so it may be a more elegant solution.

[sudeeptarlekar]

@tjozwik sounds good, closing this PR in favour of other PR.