replace tab with spaces

Author: DannyBen

spec/fixtures/workspaces/bash-3-syntax/src/test_command.sh

@@ -1,4 +1,4 @@
 # this syntax (`[[ -v`) cannot be parsed by bash 3
 if [[ -v missingno ]]; then
-	echo the variable was not defined
+  echo the variable was not defined
 fi