[autostr]vlib/v/tests/structs/struct_with_alias_embed_test.v format error

[kbkpbot]

Describe the bug

vlib/v/tests/structs/struct_with_alias_embed_test.v should output in a correct format.

Related to PR #25857

Reproduction Steps

struct_with_alias_embed_test.v

struct Foo1 {}

type Foo2 = Foo1

struct Bar {
        Foo2
}

fn test_main() {
        assert Bar{}.str() == 'Bar{
    Foo2:     Foo2(Foo1{})
}'
}

Expected Behavior

because wrong alignment in result string, it should not pass the assert.

result string should be :

Bar{
    Foo2: Foo2(Foo1{})
}

Current Behavior

assert pass

result string is :

Bar{
    Foo2:     Foo2(Foo1{})
}

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.5.0 a985192.b9e9192

Environment details (OS name and version, etc.)

V full version	V 0.5.0 a985192.b9e9192
OS	linux, Ubuntu 24.04.3 LTS
Processor	8 cpus, 64bit, little endian, Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz
Memory	11.87GB/15.51GB
V executable	/media/HD/github/kbkpbot/v/v
V last modified time	2026-01-06 11:29:08
V home dir	OK, value: /media/HD/github/kbkpbot/v
VMODULES	OK, value: /home/mars/.vmodules
VTMP	OK, value: /tmp/v_1000
Current working dir	OK, value: /media/HD/github/kbkpbot/v
Git version	git version 2.43.0
V git status	weekly.2025.52-153-gbd6e7501-dirty
.git/config present	true
cc version	cc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
gcc version	gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
clang version	Ubuntu clang version 18.1.3 (1ubuntu1)
tcc version	tcc version 0.9.28rc 2025-02-13 HEAD@f8bd136d (x86_64 Linux)
tcc git status	thirdparty-linux-amd64 696c1d84
emcc version	N/A
glibc version	ldd (Ubuntu GLIBC 2.39-0ubuntu8.6) 2.39

Note

You can use the 👍 reaction to increase the issue's priority for developers.

Please note that only the 👍 reaction to the issue itself counts as a vote.
Other reactions and those to comments will not be taken into account.