fix shellcheck error of SC1008

sasurau4 · sasurau4 · commit ce4c124292cf · 2020-11-06T20:33:12.000+09:00
diff --git a/src/ci/shared.sh b/src/ci/shared.sh
@@ -1,4 +1,5 @@
 #!/bin/false
+# shellcheck shell=bash
 
 # This file is intended to be sourced with `. shared.sh` or
 # `source shared.sh`, hence the invalid shebang and not being

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`#!/bin/false`
	`2`	`+# shellcheck shell=bash`
`2`	`3`
`3`	`4`	# This file is intended to be sourced with `. shared.sh` or
`4`	`5`	# `source shared.sh`, hence the invalid shebang and not being