[ruby-core:119522] [Ruby master Bug#20798] Missing spaces/punctuation in SyntaxError message.

Issue #20798 has been reported by sanjioh (Fabio Sangiovanni).

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Bug #20798: Missing spaces/punctuation in SyntaxError message.
https://bugs.ruby-lang.org/issues/20798

* Author: sanjioh (Fabio Sangiovanni)
* Status: Open
* ruby -v: ruby 3.4.0dev (2024-10-14T07:01:30Z master 1001ea9606) +PRISM [x86_64-darwin23]
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
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Hi all,

with the following simple snippet of Ruby code:

``` ruby
def x.y.z
end

```

the interpreter raises a `SyntaxError`, whose message is made up of two sentences with no spaces or punctuation in between (see line no. 2 of the output):


``` shell
scratch2.rb: --> scratch2.rb
expected a delimiter to close the parametersunexpected '.', ignoring it
> 1  def x.y.z
> 2  end

scratch2.rb:1: syntax errors found (SyntaxError)
> 1 | def x.y.z
    |        ^ unexpected '.', ignoring it
    |        ^ expected a delimiter to close the parameters
  2 | end
  3 |
```

This happens on master with the sentences reported above, but also on 3.3.5 with the sentences:
`expected a delimiter to close the parameterscannot parse the expression`.

Unfortunately I can't tell if the same glitch occurs with other error messages.

Thanks!



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