Fix package names that cause f20/f21 breakage

Closes-Bug: #1423720
Change-Id: I8fdea7d24d1ec09885d2a395d4ba656f4194d39f
diff --git a/files/rpms/devlibs b/files/rpms/devlibs
index 6010c9f..42b7865 100644
--- a/files/rpms/devlibs
+++ b/files/rpms/devlibs
@@ -1,6 +1,6 @@
 libffi-devel  # pyOpenSSL
 libxml2-devel  # lxml
-libxslt1-devel  # lxml
+libxslt-devel  # lxml
 mariadb-devel  # MySQL-python  f20,f21,rhel7
 mysql-devel  # MySQL-python  rhel6
 openssl-devel  # pyOpenSSL