Removed the extension

Author: Marcel Falkiewicz

nipype/interfaces/fsl/model.py

@@ -1702,7 +1702,7 @@ def _list_outputs(self):
 class GLMInputSpec(FSLCommandInputSpec):
     in_file = File(exists=True, argstr='-i %s', mandatory=True, position=1,
                    desc='input file name (text matrix or 3D/4D image file)')
-    out_file = File(name_template="%s_glm.nii.gz", argstr='-o %s', position=3,
+    out_file = File(name_template="%s_glm", argstr='-o %s', position=3,
                     desc=('filename for GLM parameter estimates'
                           + ' (GLM betas)'),
                     name_source="in_file", keep_extension=True)