[libgda] providers: fix raw spec python to use version 3

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit e6a0911d9b38479358964cf2ac0dd36df2e7e083
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Jul 24 14:22:47 2019 -0500

    providers: fix raw spec python to use version 3
    
    Fix issue #192

 providers/raw_spec.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/providers/raw_spec.py b/providers/raw_spec.py
index ddd01de40..a46d9ace8 100755
--- a/providers/raw_spec.py
+++ b/providers/raw_spec.py
@@ -31,5 +31,5 @@ for c in root.iter():
 n=os.path.basename(dargs['source'])
 nfile=n.replace('.xml.in', '.raw.xml')
 ofile=os.path.join(dargs['output'],nfile)
-print ofile
+print (ofile)
 spec.write(ofile)