* tests/core/ltlcross4.test: Ignore space diff in pandas' output.

tests/core/ltlcross4.test

@@ -57,18 +57,19 @@ EOF
 # will exit 77 if panda is not installed
 $PYTHON test.py >out.1
 
-# remove trailing whitespace from pandas' output,
-# and limit to 6 lines, because Pandas 0.13 adds
-# the size of the dataframe afterwards.
-sed 's/[ \t]*$//g;6q' <out.1 > py.out
+# remove trailing whitespace from pandas' output, and limit to 6
+# lines, because Pandas 0.13 adds the size of the dataframe
+# afterwards.  Alse the spacing between columns differs from version
+# to version.
+sed 's/[ \t]*$//g;6q' <out.1 | sed 's/  */ /g' > py.out
 
 cat >expected <<EOF
-             states                     transitions
-               mean       std amin amax        mean       std amin amax
+ states transitions
+ mean std amin amax mean std amin amax
 tool
-ltl2tgba any   2.25  0.957427    1    3       10.00  5.163978    4   16
-ltl2tgba det   2.25  0.957427    1    3        9.25  4.573474    4   14
-ltl2tgba sma   2.25  0.957427    1    3        9.25  4.573474    4   14
+ltl2tgba any 2.25 0.957427 1 3 10.00 5.163978 4 16
+ltl2tgba det 2.25 0.957427 1 3 9.25 4.573474 4 14
+ltl2tgba sma 2.25 0.957427 1 3 9.25 4.573474 4 14
 EOF
 
 diff py.out expected