Capture any system call errors
Capture any system call errors

Revised from previous commit which only captured the result.
finetjul/oce,EvgeneOskin/oce,mathstuf/oce,Tridify/oce,tpaviot/oce,mathstuf/oce,BenoitPerrot/oce,BenoitPerrot/oce,finetjul/oce,tpaviot/oce,Tech-XCorp/oce,tpaviot/oce,heartvalve/oce,Tech-XCorp/oce,EvgeneOskin/oce,EvgeneOskin/oce,heartvalve/oce,mathstuf/oce,Tech-XCorp/oce,BenoitPerrot/oce,heartvalve/oce,tpaviot/oce,BenoitPerrot/oce,finetjul/oce,Tridify/oce,mathstuf/oce,finetjul/oce,EvgeneOskin/oce,Tridify/oce,heartvalve/oce,heartvalve/oce,tpaviot/oce,EvgeneOskin/oce,Tech-XCorp/oce,Tridify/oce,mathstuf/oce,Tridify/oce,BenoitPerrot/oce,finetjul/oce,Tech-XCorp/oce