Document __cdist_loglevel values.

docs/src/cdist-reference.rst.sh

@@ -198,6 +198,11 @@ Environment variables (for reading)
 -----------------------------------
 The following environment variables are exported by cdist:
 
+__cdist_loglevel
+    Value of cdist log level. One of 60, 40, 30, 20, 15, 10 and 5 where
+    the meaning is OFF, ERROR, WARNING, INFO, VERBOSE, DEBUG and TRACE,
+    respectively.
+    Available for: initial manifest, type manifest, type gencode.
 __explorer
     Directory that contains all global explorers.
     Available for: initial manifest, explorer, type explorer, shell.

docs/src/cdist-type.rst

@@ -331,6 +331,14 @@ So when you generate a script with the following content, it will work:
     fi
 
 
+Log level in types
+------------------
+cdist log level can be accessed from __cdist_loglevel variable.
+Value is one of 60, 40, 30, 20, 15, 10 and 5 where the meaning is
+OFF, ERROR, WARNING, INFO, VERBOSE, DEBUG and TRACE, respectively.
+It is available for initial manifest, type manifest and type gencode.
+
+
 Hints for typewriters
 ----------------------
 It must be assumed that the target is pretty dumb and thus does not have high