build: fix gobootstrap path for the PPA

Author: karalabe

build/deb/ethereum/deb.rules

@@ -20,7 +20,7 @@ override_dh_auto_build:
 	# We're also shipping the bootstrapper as of Go 1.20 as it had minimum version
 	# requirements opposed to older versions of Go.
 	(mv .goboot ../ && cd ../.goboot/src && ./make.bash)
-	export GOROOT_BOOTSTRAP=`pwd`/../.goboot/bin
+	export GOROOT_BOOTSTRAP=`pwd`/../.goboot
 	(mv .go ../ && cd ../.go/src && ./make.bash)
 
 	# We can't download external go modules within Launchpad, so we're shipping the

internal/build/util.go

@@ -176,6 +176,7 @@ func UploadSFTP(identityFile, host, dir string, files []string) error {
 				time.Sleep(500 * time.Millisecond)
 				aborted = true
 				sftp.Process.Kill()
+				return
 			}
 		}
 	}()