Windows 32 bit vs circle test

We don't currently have any buildfarm animals running 32 bit mingw
builds for releases > 10. As part of my testing of msys 2 I thought I
would try its 32 bit compiler and got this regression diff on HEAD

cheers

andrew

diff -w -U3
C:/tools/msys64/home/Administrator/bf/root/HEAD/pgsql/src/test/regress/expected/circle.out
C:/tools/msys64/home/Administrator/bf/root/HEAD/pgsql.build/src/test/regress/results/circle.out
---
C:/tools/msys64/home/Administrator/bf/root/HEAD/pgsql/src/test/regress/expected/circle.out 
2019-03-03 17:14:38.648207000 +0000
+++
C:/tools/msys64/home/Administrator/bf/root/HEAD/pgsql.build/src/test/regress/results/circle.out    
2019-03-04 19:33:37.576494900 +0000
@@ -111,8 +111,8 @@
   WHERE (c1.f1 < c2.f1) AND ((c1.f1 <-> c2.f1) > 0)
   ORDER BY distance, area(c1.f1), area(c2.f1);
  five |      one       |      two       |     distance
-------+----------------+----------------+------------------
-      | <(3,5),0>      | <(1,2),3>      | 0.60555127546399
+------+----------------+----------------+-------------------
+      | <(3,5),0>      | <(1,2),3>      | 0.605551275463989
       | <(3,5),0>      | <(5,1),3>      | 1.47213595499958
       | <(100,200),10> | <(100,1),115>  |               74
       | <(100,200),10> | <(1,2),100>    | 111.370729772479

--
Andrew Dunstan https://www.2ndQuadrant.com
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