Please describe the problem:
I found 3 errors when trying to export to TeX PSTricks macros (*.tex):

1) should output \psscalebox instead of \scalebox
2) linewidth should have a length specification (pt)
3) should not be a "-pos->y" but simply "pos->y

Steps to reproduce:
1. open file
2. file --> export -->
3. choose format "TeX PSTricks macros (*tex)"


Actual results:
You get error messages when try to compile in latex

Expected results:


Does this happen every time?
Yes

Other information:
I indeed fixed the problem by making changes in "render_pstricks.c".  I am enclosing the patch file.  I renamed the original "render_pstricks.c.orig" (probably not the standard way to do it, but I am not a developer).  Here it is:

259c259
<     fprintf(renderer->file, "\\psset{linewidth=%spt}\n",
---
>     fprintf(renderer->file, "\\psset{linewidth=%s}\n",
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<     fprintf(renderer->file,"(%s,%s){\\psscalebox{1 -1}{%s}}\n",
---
>     fprintf(renderer->file,"(%s,%s){\\scalebox{1 -1}{%s}}\n",
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<           pstricks_dtostr(py_buf,pos->y),
---
>           pstricks_dtostr(py_buf,-pos->y),
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<     fprintf(renderer->file,"\\psscalebox{%s %s}{\n",
---
>     fprintf(renderer->file,"\\scalebox{%s %s}{\n",