Would you like to add more error handling for return values from functions like the following? - [fprintf](https://pubs.opengroup.org/onlinepubs/9699919799/functions/fprintf.html "Print formatted output") ⇒ [main](https://github.com/canonical/lightdm/blob/442e38384037b3ac79896cd91ce38c3ea48b7a2a/src/lightdm.c#L720) - [sigaction](https://pubs.opengroup.org/onlinepubs/9699919799/functions/sigaction.html "Change a signal action") ⇒ [process_class_init](https://github.com/canonical/lightdm/blob/1b99bc2ed9ad5093ab8b4c7b8ed46b3a04bfcc65/src/process.c#L480)
Would you like to add more error handling for return values from functions like the following?