Trim whitespace from --update-data

Author: sterliakov

test-data/unit/check-parameter-specification.test

@@ -2457,21 +2457,6 @@ def run_bad4(func: Callable[Concatenate[int, P], T], *args: P.args, **kwargs: P.
     func2(1, **kwargs)  # E: Too few arguments \
                         # E: Argument 1 has incompatible type "int"; expected "P.args"
     return func2(**kwargs)  # E: Too few arguments
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 [builtins fixtures/paramspec.pyi]
 
 [case testOtherVarArgs]
@@ -2490,12 +2475,6 @@ def run(func: Callable[Concatenate[int, str, P], T], *args: P.args, **kwargs: P.
                                 # E: Argument 1 has incompatible type "*P.args"; expected "str" \
                                 # E: Argument 2 has incompatible type "*Tuple[int, str]"; expected "P.args"
     return func2(*args_prefix, *args)
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 [builtins fixtures/paramspec.pyi]
 
 [case testParamSpecScoping]