Correct quote from "George Bernard Shaw": milestones -> millstones

From Major Barbara/Act III
From https://en.wikisource.org/w/index.php?title=Major_Barbara/Act_III,_%C2%A7_iii&oldid=12652397

fortune-mod/datfiles/work

@@ -1935,8 +1935,8 @@ it made.
 		-- Jean Giraudoux
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 The seven deadly sins ... Food, clothing, firing, rent, taxes, respectability
-and children.  Nothing can lift those seven milestones from man's neck but
-money; and the spirit cannot soar until the milestones are lifted.
+and children.  Nothing can lift those seven millstones from man's neck but
+money; and the spirit cannot soar until the millstones are lifted.
 		-- George Bernard Shaw
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 The shortest distance between two points is under construction.