shithub: lua9

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Fix string function to allow optional points (nil instead of a point)

--- a/draw.c

+++ b/draw.c

@@ -391,7 +391,7 @@

 	dst = checkimage(L, 1);

 	p   = checkpoint(L, 2);

 	src = checkimage(L, 3);

-	sp  = checkpoint(L, 4);

+	sp  = optpoint(L, 4);

 	f   = checkfont(L, 5);

 	s   = luaL_checkstring(L, 6);

 	len = luaL_checkinteger(L, 7);

@@ -433,7 +433,7 @@

 	dst = checkimage(L, 1);

 	p   = checkpoint(L, 2);

 	src = checkimage(L, 3);

-	sp  = checkpoint(L, 4);

+	sp  = optpoint(L, 4);

 	f   = checkfont(L, 5);

 	s   = luaL_checkstring(L, 6);

 	len = luaL_checkinteger(L, 7);