Add find_typedef comment.

diff --git a/src/tools/find_typedef b/src/tools/find_typedef
index 7725108170d5944ffc0e14876218f87b874e9f66..2a928c8d4a961fefc6179152df884ff576a140d7 100755 (executable)
--- a/src/tools/find_typedef
+++ b/src/tools/find_typedef
@@ -36,7 +36,7 @@ then  echo "Usage:  $0 postgres_binary_directory [...]" 1>&2
 fi
 
 for DIR
-do
+do     # if objdump -W is recognized, only one line of error should appear
        if [ `objdump -W 2>&1 | wc -l` -eq 1 ]
        then    # Linux
                # unfortunately the Linux version doesn't show unreferenced typedefs