fix password handling

elasticsearch-xpack/elasticsearch-xpack.spec

@@ -157,13 +157,13 @@ PreReq:       elasticsearch
                 -a -i "$RPM_INSTALL_PREFIX:elasticsearch-xpack" -p "#" $conf
             su - %{l_rusr} -c \
                 "LC_CTYPE=C; export LC_CTYPE; umask 077; \
-                echo elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
+                echo -n elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
                     -s -x xpack.security.http.ssl.keystore.secure_password; \
-                echo elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
+                echo -n elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
                     -s -x xpack.security.http.ssl.truststore.secure_password; \
-                echo elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
+                echo -n elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
                     -s -x xpack.security.transport.ssl.keystore.secure_password; \
-                echo elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
+                echo -n elasticsearch | $RPM_INSTALL_PREFIX/bin/elasticsearch-keystore add \
                     -s -x xpack.security.transport.ssl.truststore.secure_password"
         fi