[gtk-doc] make: Remove trailing whitespace after backslash.

[Stefan Kost <stefkost src gnome org>]

commit e61cf76df44d1112964d0b3016162e2ef2e01215
Author: Krzesimir Nowak <qdlacz gmail com>
Date:   Wed Nov 28 11:31:59 2012 +0100

    make: Remove trailing whitespace after backslash.
    
    Automake keeps complaining about it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=689209

 gtk-doc.notmpl.make |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk-doc.notmpl.make b/gtk-doc.notmpl.make
index 33f480e..d87f66d 100644
--- a/gtk-doc.notmpl.make
+++ b/gtk-doc.notmpl.make
@@ -82,7 +82,7 @@ setup-build.stamp:
 	-$(GTK_DOC_V_SETUP)if test "$(abs_srcdir)" != "$(abs_builddir)" ; then \
 	    files=`echo $(SETUP_FILES) $(expand_content_files) $(DOC_MODULE).types`; \
 	    if test "x$$files" != "x" ; then \
-	        for file in $$files ; do \         
+	        for file in $$files ; do \
 	            test -f $(abs_srcdir)/$$file && \
 	                cp -pu $(abs_srcdir)/$$file $(abs_builddir)/ || true; \
 	        done; \