+ check $? $LINENO
+# empty file should be frozen with the -lh0- method.
+touch test-tmp-0byte
+ check $? $LINENO
+$lha c test-tmp-0byte.lzh test-tmp-0byte
+ check $? $LINENO
+$lha v test-tmp-0byte.lzh
+ check $? $LINENO
+$lha v test-tmp-0byte.lzh | grep lh0
+ check $? $LINENO
+# uncompressed file should be frozen with the -lh0- method.
+echo foobar > test-tmp-small
+ check $? $LINENO
+$lha c test-tmp-small.lzh test-tmp-small
+ check $? $LINENO
+$lha v test-tmp-small.lzh
+ check $? $LINENO
+$lha v test-tmp-small.lzh | grep lh0
+ check $? $LINENO