[texinfo] Issue resolving macros with no parameters specified

[drolevar]

Description / Steps to reproduce the issue

Texinfo 7.1 supplied with MSYS adds an empty line into argument resolution if no parameter is specified.

Let's consider the following example:

@c -- Macro definition --
@macro foomac{body}
@c blahblah {\body\}
@end macro

@c -- Macro being used --
@foomac

Expected behavior

Since no argument is specified, it should be resolved to

@c blahblah {}

Actual behavior

But instead it's being resolved to

@c blahblah {
}

which breaks a number of scenarios.

Verification

• I have verified that my MSYS2 is up-to-date before submitting the report (see https://www.msys2.org/docs/updating/)

Windows Version

MINGW32_NT-10.0-19045

Are you willing to submit a PR?

No response

[drolevar]

Has to be noted, that the same codebase on Cygwin and native Linux works fine.