(#2183) updated str2bool readme wording

diff --git a/README.markdown b/README.markdown
index f9c94256687b5ce85877dc038a6bed2699cbd99a..67b2b176396822789213ef71c3cc4952a0b25a31 100644 (file)
--- a/README.markdown
+++ b/README.markdown
@@ -711,7 +711,7 @@ Returns a new string where runs of the same character that occur in this set are
 
 #### `str2bool`
 
-Converts a string to a boolean regardless of case. This attempts to convert strings that contain values such as '1', 't', 'y', 'Y', 'YES','yes', and 'TRUE' to 'true' and strings that contain values such as '0', 'f','F', 'N','n', 'NO','FALSE', and 'no' to 'false'. *Type*: rvalue.  
+Converts certain strings to a boolean. This attempts to convert strings that contain the values '1', 't', 'y', and 'yes' to 'true'.  Strings that contain values '0', 'f', 'n', and 'no', or are an an empty string or undefined are converted to 'false'. Any other value will cause an error. *Type*: rvalue.
 
 #### `str2saltedsha512`