Change IMPORTANT to WARNING for greater emphasis.

doc/ssl/SSL_library_init.pod

diff --git a/doc/ssl/SSL_library_init.pod b/doc/ssl/SSL_library_init.pod
index bf2a94c..ecf3c48 100644
--- a/doc/ssl/SSL_library_init.pod
+++ b/doc/ssl/SSL_library_init.pod
@@ -24,7 +24,7 @@
 
 SSL_library_init() must be called before any other action takes place.
 
-=head1 IMPORTANT
+=head1 WARNING
 
 SSL_library_init() only registers ciphers. Another important initialization
 is the seeding of the PRNG (Pseudo Random Number Generator), which has to