fix docstring
fix docstring

vlukes/sfepy,BubuLK/sfepy,sfepy/sfepy,RexFuzzle/sfepy,rc/sfepy,olivierverdier/sfepy,BubuLK/sfepy,RexFuzzle/sfepy,vlukes/sfepy,vlukes/sfepy,lokik/sfepy,olivierverdier/sfepy,olivierverdier/sfepy,sfepy/sfepy,rc/sfepy,lokik/sfepy,rc/sfepy,sfepy/sfepy,lokik/sfepy,RexFuzzle/sfepy,lokik/sfepy,RexFuzzle/sfepy,BubuLK/sfepy