Fix PHPStan warning.

drupol · drupol · commit 04a3450906d4 · 2020-07-16T22:42:52.000+02:00
diff --git a/src/Exporter/Image.php b/src/Exporter/Image.php
@@ -45,7 +45,7 @@ public function export(NodeInterface $node): string
 
         file_put_contents($tmp, (new Gv())->export($node));
 
-        return shell_exec($this->getConvertCommand($tmp));
+        return (string) shell_exec($this->getConvertCommand($tmp));
     }
 
     /**

Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,7 @@ public function export(NodeInterface $node): string`
`45`	`45`
`46`	`46`	`file_put_contents($tmp, (new Gv())->export($node));`
`47`	`47`
`48`		`- return shell_exec($this->getConvertCommand($tmp));`
	`48`	`+ return (string) shell_exec($this->getConvertCommand($tmp));`
`49`	`49`	`}`
`50`	`50`
`51`	`51`	`/**`