po/quot.sed - external/elfutils - Git at Google

 s/"\([^"]*\)"/“\1”/g
 s/`\([^`']*\)'/‘\1’/g
 s/ '\([^`']*\)' / ‘\1’ /g
 s/ '\([^`']*\)'$/ ‘\1’/g
 s/^'\([^`']*\)' /‘\1’ /g
 s/“”/""/g
	s/"\([^"]*\)"/“\1”/g
	s/`\([^`']*\)'/‘\1’/g
	s/ '\([^`']*\)' / ‘\1’ /g
	s/ '\([^`']*\)'$/ ‘\1’/g
	s/^'\([^`']*\)' /‘\1’ /g
	s/“”/""/g