Fix comment for DisallowSpaceIndentSniff

This should be referencing spaces are problematic, and not tabs.
Correct docblock short description

Another case where a sniff's short description is not accurate.
Merge pull request #128 from sqmk/patch-2

Correct docblock short description
Merge pull request #125 from sqmk/patch-1

Fix comment for DisallowSpaceIndentSniff
Fixed bug #19969 : Sniffs with namespace not recognized in reports
Merge branch 'master' of https://github.com/squizlabs/PHP_CodeSniffer
Explaining a standard (phpcs -e) that uses namespaces now works correctly
Changed the way namespaces are checked as this is easier and more consistent with other parts of the code
Restricting a check to specific sniffs (phpcs --sniffs=...) now works correctly with namespaced sniffs
PSR2 SwitchDeclarationSniff no longer reports errors for empty lines between CASE statements
PSR2 standard no longer enforces no whitespace between the closing parenthesis of a function call and the semicolon
Merge branch 'master' of https://github.com/nubs/PHP_CodeSniffer
Squiz ArrayDeclarationSniff no longer reports errors for no comma at the end of a line that contains a function call
Squiz DisallowComparisonAssignmentSniff no longer throws errors for the third expression in a FOR statement
Squiz CommentedOutCodeSniff is now better at ignoring commented out HTML and XML