Mark small mdfour functions as 'inline'.
Mark small mdfour functions as 'inline'.

potatogim/librsync,yrgoldteeth/librsync,sourcefrog/librsync,binondord/librsync,pauloppenheim-liveloop/librsync-winbuild,agrandville/librsync,pauloppenheim-liveloop/librsync,Salamek/librsync,pauloppenheim-liveloop/librsync-winbuild,Salamek/librsync,pauloppenheim-liveloop/librsync-winbuild,yrgoldteeth/librsync,dbaarda/librsync,yrgoldteeth/librsync,librsync/librsync,binondord/librsync,VictorDenisov/librsync,yrgoldteeth/librsync,VictorDenisov/librsync,sourcefrog/librsync,VictorDenisov/librsync,librsync/librsync,potatogim/librsync,sourcefrog/librsync,agrandville/librsync,pauloppenheim-liveloop/librsync,pauloppenheim-liveloop/librsync,dbaarda/librsync,librsync/librsync,sourcefrog/librsync,dbaarda/librsync,librsync/librsync,VictorDenisov/librsync,dbaarda/librsync,agrandville/librsync,Salamek/librsync,binondord/librsync,potatogim/librsync