testing/btest: Fix double commented @TEST- lines

sed -i 's/^# # @/# @/g'

testing/btest/scripts/base/frameworks/input/path-prefix/absolute-prefix.zeek

@@ -28,7 +28,7 @@ event zeek_init()
 			  $destination=destination, $want_record=F]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test, but using event streams for input.
 
@@ -41,7 +41,7 @@ event zeek_init()
 			  $fields=Val, $ev=inputev]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test again, but using file analysis w/ binary readers.
 

testing/btest/scripts/base/frameworks/input/path-prefix/absolute-source.zeek

@@ -22,7 +22,7 @@ event zeek_init()
 			  $destination=destination, $want_record=F]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test, but using event streams for input.
 
@@ -35,7 +35,7 @@ event zeek_init()
 			  $fields=Val, $ev=inputev]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test again, but using file analysis w/ binary readers.
 

testing/btest/scripts/base/frameworks/input/path-prefix/no-paths.zeek

@@ -19,7 +19,7 @@ event zeek_init()
 			  $destination=destination, $want_record=F]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test, but using event streams for input.
 
@@ -31,7 +31,7 @@ event zeek_init()
                           $fields=Val, $ev=inputev]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test again, but using file analysis w/ binary readers.
 

testing/btest/scripts/base/frameworks/input/path-prefix/relative-prefix.zeek

@@ -22,7 +22,7 @@ event zeek_init()
 			  $destination=destination, $want_record=F]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test, but using event streams for input.
 
@@ -35,7 +35,7 @@ event zeek_init()
                           $fields=Val, $ev=inputev]);
 	}
 
-# # @TEST-START-NEXT
+# @TEST-START-NEXT
 #
 # The same test again, but using file analysis w/ binary readers.