Build: Fix compilation with GNU make 4.0 (issue 18700043)

[julien . rioux]

Reviewers: John Mandereau,

Message:
Thanks to Thomas Klausner. This seems like the correct fix.

Cheers,
Julien

Description:
Build: Fix compilation with GNU make 4.0

Fix "recipes commence before first target" error.

Patch from Thomas Klausner.

Please review this at https://codereview.appspot.com/18700043/

Affected files (+1, -1 lines):
  M stepmake/stepmake/po-targets.make


Index: stepmake/stepmake/po-targets.make
diff --git a/stepmake/stepmake/po-targets.make  
b/stepmake/stepmake/po-targets.make
index  
8919dab8239e69f0378a0d6071fc1d249f8bbff0..8a0dd76053f51e8a7ef98f4e9b289a7e24c45218  
100644
--- a/stepmake/stepmake/po-targets.make
+++ b/stepmake/stepmake/po-targets.make
@@ -37,10 +37,10 @@ ifneq ($(strip $(ALL_PO_SOURCES)),)
         --keyword=_ --keyword=_f --keyword=_i \
         $(XGETTEXT_FLAGS) $(ALL_PO_SOURCES)
 endif
-endif
        sed -i '1,2d' $(po-outdir)/$(package).po
 	sed -i -e 's/^\# This file is distributed.*/$(sed-header)/'  
$(po-outdir)/$(package).po
 	sed -i -e 's/^\"Content-Type: text\/plain.*/$(sed-content)/'  
$(po-outdir)/$(package).po
+endif


 po-update: po