[Console] Add FormatterHelper::truncate docs#6186

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marek-pietrzak-tg wants to merge 4 commits intosymfony:masterfrom

marek-pietrzak-tg:add-formatter-helper-truncate

Commits on Jan 26, 2016

Commits on Jan 31, 2016

Change wording and fix column length
marek-pietrzak-tg
committed

Commits on Feb 7, 2016

Move suffix examples into one code block, fix wording
marek-pietrzak-tg
committed