Merge pull request #247 from mkaravel/fix/apply_coding_rules

[algorithms][is_valid] apply coding rules (space after operator !)

include/boost/geometry/algorithms/detail/is_valid/has_spikes.hpp

@@ -67,7 +67,7 @@ struct not_equal_to
     template <typename OtherPoint>
     inline bool operator()(OtherPoint const& other) const
     {
-        return !geometry::equals(other, m_point);
+        return ! geometry::equals(other, m_point);
     }
 };