Add resultmap entries for datetime-related tests on alpha-dec-osf.

src/test/regress/resultmap

@@ -28,5 +28,8 @@ geometry/sparc-sun-solaris=geometry-solaris-precision
 geometry/powerpc-unknown-linux-gnulibc1=geometry-powerpc-linux-gnulibc1
 horology/hppa=horology-no-DST-before-1970
 horology/sparc-sun-solaris=horology-solaris-1947
+horology/alpha.*-dec-osf=horology-solaris-1947
 abstime/sparc-sun-solaris=abstime-solaris-1947
+abstime/alpha.*-dec-osf=abstime-solaris-1947
 tinterval/sparc-sun-solaris=tinterval-solaris-1947
+tinterval/alpha.*-dec-osf=tinterval-solaris-1947