bad verification letter before `:` in string if local variable is a letter and is same with [r-, --replace] arg

[Hnfull]

• With [-r, --replace] parameter

C = "letter"
if "C:" in string or "D:" in string:
    print("test")

C: string in if is obfuscated because local variable C exist and char : after char C in if cause the problem , this is due to bad check words, because var C and strings C: is not the same