[gthumb] clarification about the --enable-run-in-place option

[Paolo Bacchilega <paobac src gnome org>]

commit eb1f0b4c97ac2920a411c155c86c8215d6814bf3
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Wed Aug 17 18:01:57 2016 +0200

    clarification about the --enable-run-in-place option

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index c19db73..a49c743 100644
--- a/configure.ac
+++ b/configure.ac
@@ -130,7 +130,7 @@ CFLAGS="$CFLAGS $WARNINGS"
 dnl ===========================================================================
 
 AC_ARG_ENABLE(run_in_place,
-             AS_HELP_STRING([--enable-run-in-place],[load ui data and extensions from the source tree]),
+             AS_HELP_STRING([--enable-run-in-place],[load ui data and extensions from the source tree, you 
still need to 'make install' the data directory (useful for development)]),
              [case "${enableval}" in
              yes) enable_run_in_place=yes ;;
              no) enable_run_in_place=no ;;