GNUmakefile: change a non-POSIX "echo -n" to printf.

diff --git a/GNUmakefile b/GNUmakefile
index 1ce4ddc4b203e8500617dd725c587bdcb2be36c7..73d8988afbc296036c8f0ee83834914a59ce7737 100644 (file)
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -154,7 +154,7 @@ $(PN).bbl: $(SRCS) | $(PN).aux
 ifdef BIBS
        bibtex $(PN).aux
 else
-       echo -n '' > $@
+       printf '' > $@
 endif
 
 # If the output PDF exists but the log file does not, then an attempt