Introduce exit code for unknown boolean values.

diff --git a/functions.constants b/functions.constants
index 0bdb6a75a711dd271e52dd87b931096be5d284a0..84bdbd469726655ad85296766d3fe9d64be6be6c 100644 (file)
--- a/functions.constants
+++ b/functions.constants
@@ -51,6 +51,7 @@ EXIT_ERROR_ASSERT=128
 
 EXIT_TRUE=0
 EXIT_FALSE=1
+EXIT_UNKNOWN=2
 
 STATUS_UP=0
 STATUS_DOWN=1