Replace some const char * with const char[]

src/plugins/cpptools/cppcodestylepreferences.cpp

src/plugins/cpptools/cppcodestylesettings.cpp

src/plugins/cpptools/cpptoolssettings.cpp

src/plugins/texteditor/codestylepool.cpp

src/plugins/texteditor/fontsettings.cpp

src/plugins/texteditor/icodestylepreferences.cpp

src/plugins/texteditor/storagesettings.cpp