Improve test script

test/run

@@ -31,17 +31,13 @@ main() {
         set global autoreload yes
         set global autoinfo ''
         set global autoshowcompl false
-        try %{
-          source rc
-        }
+        try %{ source rc }
         try %{
             exec '%s%\(\K[^)]+<ret><c-s>ld<a-t>(hHdi<c-u><esc><c-o>'
-        } \
-        catch %{
-          exec gg
-        }
+        } catch %{ exec gg }
         hook global RuntimeError .+ %{
-          nop %sh{echo \"\$kak_hook_param\" > stderr}
+            echo -debug -- error: %val{hook_param}
+            eval -buffer *debug* write debug
             quit!
         }
         exec '$(cat cmd | sed -e s/\'/\\\\\'/g)'