ukoethe/vigra — pull request #223 by serval2412 (2014-12-31 09:00:50+00:00)
Title: Fix cppcheck reports:

[src/impex/bmp.cxx:795]: (performance) Passing the result of c_str() to a function that takes std::string as argument no. 1 is slow and redundant.
[src/impex/pnm.cxx:405]: (performance) Passing the result of c_str() to a function that takes std::string as argument no. 1 is slow and redundant.