BGP_AS regex disallowing valid values.

I'd tried to avoid long line PEP8 error by breaking the template regex into multiple shorter lines, but must not have gotten it right.  Reverting to the single-line regex from the template for now.

plugins/module_utils/common/conversion.py

@@ -32,29 +32,7 @@ class ConversionUtils:
     """
 
     def __init__(self):
-        re_asn_string = "^(("
-        re_asn_string += "(\\+)?[1-9]{1}[0-9]{0,8}|"
-        re_asn_string += "(\\+)?[1-3]{1}[0-9]{1,9}|"
-        re_asn_string += "(\\+)?"
-        re_asn_string += "[4]{1}([0-1]{1}[0-9]{8}|"
-        re_asn_string += "[2]{1}([0-8]{1}[0-9]{7}|"
-        re_asn_string += "[9]{1}([0-3]{1}[0-9]{6}|"
-        re_asn_string += "[4]{1}([0-8]{1}[0-9]{5}|"
-        re_asn_string += "[9]{1}([0-5]{1}[0-9]{4}|"
-        re_asn_string += "[6]{1}([0-6]{1}[0-9]{3}|"
-        re_asn_string += "[7]{1}([0-1]{1}[0-9]{2}|"
-        re_asn_string += "[2]{1}([0-8]{1}[0-9]{1}|"
-        re_asn_string += "[9]{1}[0-5]{1})))))))))|"
-        re_asn_string += "([1-5]\\d{4}|"
-        re_asn_string += "[1-9]\\d{0,3}|"
-        re_asn_string += "6[0-4]\\d{3}|"
-        re_asn_string += "65[0-4]\\d{2}|"
-        re_asn_string += "655[0-2]\\d|"
-        re_asn_string += "6553[0-5])(\\.[1-5]\\d{4}|[1-9]\\d{0,3}|"
-        re_asn_string += "6[0-4]\\d{3}|65[0-4]\\d{2}|"
-        re_asn_string += "655[0-2]\\d|6553[0-5]|0)?)$"
-        self.re_asn = re.compile(re_asn_string)
-
+        self.re_asn = re.compile("^(((\\+)?[1-9]{1}[0-9]{0,8}|(\\+)?[1-3]{1}[0-9]{1,9}|(\\+)?[4]{1}([0-1]{1}[0-9]{8}|[2]{1}([0-8]{1}[0-9]{7}|[9]{1}([0-3]{1}[0-9]{6}|[4]{1}([0-8]{1}[0-9]{5}|[9]{1}([0-5]{1}[0-9]{4}|[6]{1}([0-6]{1}[0-9]{3}|[7]{1}([0-1]{1}[0-9]{2}|[2]{1}([0-8]{1}[0-9]{1}|[9]{1}[0-5]{1})))))))))|([1-5]\\d{4}|[1-9]\\d{0,3}|6[0-4]\\d{3}|65[0-4]\\d{2}|655[0-2]\\d|6553[0-5])(\\.([1-5]\\d{4}|[1-9]\\d{0,3}|6[0-4]\\d{3}|65[0-4]\\d{2}|655[0-2]\\d|6553[0-5]|0))?)$")
         self.bgp_as_invalid_reason = None
 
     def bgp_as_is_valid(self, value):