Add debug_info=1 to shell completion

priv/shell-completion/bash/rebar

@@ -11,8 +11,8 @@ _rebar()
     cmdsnvars="build-plt check-plt check-deps clean compile \
         create create-app create-node ct dialyze doc delete-deps eunit \
         get-deps generate help list-templates version xref \
-        case= force=1 jobs= suite= verbose=1 appid= skip_deps=1 \
-        template= template_dir="
+        case= debug_info=1 force=1 jobs= suite= verbose=1 appid= \
+        skip_deps=1 template= template_dir="
 
     if [[ ${cur} == --* ]] ; then
         COMPREPLY=( $(compgen -W "${lopts}" -- ${cur}) )