Fix BOM, CRLF line endings, and escaped quotes in url_validators

Author: Varshith-Kali

src/mcp/server/auth/url_validators.py

@@ -1,22 +1,22 @@
-\"\"\"OAuth 2.0 URL validation helpers for MCP authorization servers.
+"""OAuth 2.0 URL validation helpers for MCP authorization servers.
 
 RFC 9700 4.1.1 and RFC 7591 2 require HTTPS for authorization endpoint URLs
 and registered redirect_uris, with an HTTP loopback exception for local
 development.
-\"\"\"
+"""
 
 from pydantic import AnyHttpUrl
 
 
 def validate_issuer_url(url: AnyHttpUrl):
-    \"\"\"Validate that the issuer URL meets OAuth 2.0 requirements.
+    """Validate that the issuer URL meets OAuth 2.0 requirements.
 
     Args:
         url: The issuer URL to validate.
 
     Raises:
         ValueError: If the issuer URL is invalid.
-    \"\"\"
+    """
     if url.scheme != "https" and url.host not in ("localhost", "127.0.0.1", "[::1]"):
         raise ValueError("Issuer URL must be HTTPS")
 
@@ -27,7 +27,7 @@ def validate_issuer_url(url: AnyHttpUrl):
 
 
 def validate_redirect_uri(url: AnyHttpUrl):
-    \"\"\"Validate a registered redirect_uri for DCR.
+    """Validate a registered redirect_uri for DCR.
 
     RFC 9700 section 4.1.1 and RFC 7591 section 2 require HTTPS for
     redirect_uris, with an HTTP loopback exception for local development.
@@ -38,7 +38,7 @@ def validate_redirect_uri(url: AnyHttpUrl):
     Raises:
         ValueError: If the redirect URI uses an unsafe scheme or contains
             a fragment.
-    \"\"\"
+    """
     if url.scheme != "https" and url.host not in ("localhost", "127.0.0.1", "[::1]"):
         raise ValueError("Redirect URI must use HTTPS (or HTTP loopback for local development)")