Re: [PATCH] gnulib-tool.py: Fix whitespace in gnulib-comp.m4.

[Bruno Haible]

Hi Collin,

> In the the ./import-tests/test-wget2-1.sh output of gnulib-comp.m4
> there is this whitespace diff:
> 
> $ diff -u ./test-wget2-1.result/m4/gnulib-comp.m4 
> tmp115629-result/m4/gnulib-comp.m4
> --- ./test-wget2-1.result/m4/gnulib-comp.m4   2024-03-27 03:05:35.527866182 
> -0700
> +++ tmp115629-result/m4/gnulib-comp.m4        2024-03-27 21:12:14.079772897 
> -0700
> @@ -462,7 +463,7 @@
>    gl_CONDITIONAL([GL_COND_OBJ_ACCESS], [test $REPLACE_ACCESS = 1])
>    gl_UNISTD_MODULE_INDICATOR([access])
>    gl_ALIGNASOF
> -changequote(,)dnl
> +  changequote(,)dnl
>  LTALLOCA=`echo "$ALLOCA" | sed -e 's/\.[^.]* /.lo /g;s/\.[^.]*$/.lo/'`
>  changequote([, ])dnl
>  AC_SUBST([LTALLOCA])
> 
> This tiny patch fixes it.

Thanks! Applied.

> It looks like lines_to_multiline returned an
> empty string which is accepted by the regular expression and added 2
> spaces infront of it.

Yes, the regular expression
  re.compile(r'^(.*)$', re.M)
when applied to a string consisting of N newline-terminated lines,
matches N+1 times. While 'sed' would see N lines, Python sees N+1 lines,
the last line being empty and not newline-terminated.

Bruno