make our autogen.sh work on ksh as well as bash

svn:r2635

autogen.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 # Run this to generate all the initial makefiles, etc.
-aclocal &&
-	autoheader &&
-	autoconf &&
-	automake --add-missing --copy &&
+aclocal && \
+	autoheader && \
+	autoconf && \
+	automake --add-missing --copy && \
 	./configure