ecore_evas/convert: fix div by zero

Summary:
if one is 0, the printf line will divide by it

CID 1403900
Depends on D10206

Reviewers: cedric

Reviewed By: cedric

Subscribers: cedric, #reviewers, #committers

Tags: #efl

Differential Revision: https://phab.enlightenment.org/D10207

src/bin/ecore_evas/ecore_evas_convert.c

@@ -58,7 +58,7 @@ _save_do(void *data EINA_UNUSED)
    const char *output = job.output;
 
    job.ret = 0;
-   if (width || height)
+   if (width && height)
      {
         Eina_Slstr *str;