remove redundant curly brace

Author: ekneg54

logprep/processor/dissector/rule.py

@@ -100,7 +100,7 @@
 
 START = r"%\{"
 END = r"\}"
-VALID_TARGET_FIELD = r"[^\}\%\{\}\+\/\|]*"
+VALID_TARGET_FIELD = r"[^\%\{\}\+\/\|]*"
 APPEND_WITH_SEPERATOR = r"(\+\([^%]+\))"
 APPEND_WITHOUT_SEPERATOR = r"(\+(?!\([^%]))"
 INDIRECT_FIELD_NOTATION = r"([&\?]))"