build: minor fixes to git-export-patches (#17276)
build: minor fixes to git-export-patches (#17276)

* fix: make export-patches robust to tags with dashes

* fix: --output is a required parameter of export-patches

electron/electron,electron/electron,gerhardberger/electron,gerhardberger/electron,electron/electron,seanchas116/electron,electron/electron,electron/electron,bpasero/electron,gerhardberger/electron,the-ress/electron,electron/electron,seanchas116/electron,gerhardberger/electron,gerhardberger/electron,the-ress/electron,gerhardberger/electron,the-ress/electron,bpasero/electron,bpasero/electron,electron/electron,bpasero/electron,the-ress/electron,the-ress/electron,bpasero/electron,seanchas116/electron,bpasero/electron,seanchas116/electron,bpasero/electron,gerhardberger/electron,the-ress/electron,seanchas116/electron,seanchas116/electron,the-ress/electron