Resultmap updates for OpenBSD, per report from bpalmer@crimelabs.net.

src/test/regress/resultmap

@@ -7,6 +7,7 @@ abstime/.*-sysv5uw=abstime-solaris-1947
 float4/.*-qnx=float4-exp-three-digits
 float8/.*-bsdi=float8-small-is-zero
 float8/.*-freebsd=float8-small-is-zero
+float8/.*-openbsd=float8-small-is-zero
 float8/i.86-.*-netbsd=float8-small-is-zero
 float8/.*-qnx=float8-exp-three-digits
 float8/alpha.*-dec-osf.*:cc=float8-fp-exception
@@ -15,6 +16,7 @@ geometry/.*-bsdi=geometry-positive-zeros-bsd
 geometry/.*-darwin=geometry-powerpc-darwin
 geometry/.*-freebsd=geometry-positive-zeros
 geometry/.*-freebsd4=geometry-positive-zeros-bsd
+geometry/.*-openbsd=geometry-positive-zeros-bsd
 geometry/.*-irix6=geometry-irix
 geometry/.*-netbsd=geometry-positive-zeros
 geometry/.*-sysv5uw7.*:cc=geometry-uw7-cc
@@ -43,6 +45,7 @@ int2/.*-freebsd=int2-too-large
 int2/.*-irix6=int2-too-large
 int2/.*-netbsd=int2-too-large
 int2/.*-qnx=int2-too-large
+int2/.*-openbsd=int2-too-large
 int2/alpha.*-dec-osf=int2-too-large
 int2/hppa=int2-too-large
 int2/i.86-pc-cygwin=int2-math-result-out-of-range
@@ -59,6 +62,7 @@ int4/.*-freebsd=int4-too-large
 int4/.*-irix6=int4-too-large
 int4/.*-netbsd=int4-too-large
 int4/.*-qnx=int4-too-large
+int4/.*-openbsd=int4-too-large
 int4/alpha.*-dec-osf=int4-too-large
 int4/hppa=int4-too-large
 int4/i.86-pc-cygwin=int4-math-result-out-of-range