[epiphany] build: m4, directory should be just m4

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 5243f8a82e6190728382a91dc3ce8b8152fdaf8e
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Thu Jan 7 14:17:42 2016 -0600

    build: m4, directory should be just m4
    
    This was an amusing regression.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index aa9b8e5..1291880 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ AX_IS_RELEASE([git-directory])
 AC_PREREQ([2.59])
 
 AC_CONFIG_AUX_DIR([build-aux])
-AC_CONFIG_MACRO_DIRS([m4, libgd])
+AC_CONFIG_MACRO_DIRS([m4 libgd])
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([configure.ac])