Adjust btests for OpenBSD portability

testing/btest/language/nested-sets.zeek

@@ -1,6 +1,29 @@
-# @TEST-EXEC: for i in `seq 21`; do echo 0 >> random.seed; done
 # @TEST-EXEC: test `zeek -b -G random.seed %INPUT` = "pass"
 
+@TEST-START-FILE random.seed
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+@TEST-END-FILE
+
 type r: record {
 	b: set[count];
 };

testing/btest/scripts/base/frameworks/logging/ascii-gz.zeek

@@ -1,6 +1,7 @@
 #
 # @TEST-EXEC: zeek -b %INPUT
-# @TEST-EXEC: gunzip -S .gzip ssh.log.gzip
+# @TEST-EXEC: mv ssh.log.gzip ssh.log.gz
+# @TEST-EXEC: gunzip ssh.log.gz
 # @TEST-EXEC: btest-diff ssh.log
 # @TEST-EXEC: btest-diff ssh-uncompressed.log
 #