Update to match expected results on OS X 10.2.

src/test/regress/expected/geometry-powerpc-darwin.out

@@ -127,7 +127,7 @@ SELECT '' AS thirty, p.f1, l.s, p.f1 ## l.s AS closest
         | (-5,-12)   | [(10,-10),(-3,-4)]            | (-1.60487804878049,-4.64390243902439)
         | (10,10)    | [(10,-10),(-3,-4)]            | (2.39024390243902,-6.48780487804878)
         | (0,0)      | [(-1000000,200),(300000,-40)] | (0.0028402365895872,15.384614860264)
-        | (-10,0)    | [(-1000000,200),(300000,-40)] | (-9.99715942258202,15.3864610140472)
+        | (-10,0)    | [(-1000000,200),(300000,-40)] | (-9.99715942258202,15.3864610140473)
         | (-3,4)     | [(-1000000,200),(300000,-40)] | (-2.99789812267519,15.3851688427303)
         | (5.1,34.5) | [(-1000000,200),(300000,-40)] | (5.09647083221496,15.3836744976925)
         | (-5,-12)   | [(-1000000,200),(300000,-40)] | (-4.99494420845634,15.3855375281616)