Fix the SSL_set1_sigalgs() macro

This macro has a typo in it which makes it unusable. This issue was already
fixed in 1.0.2 in commit 75fdee04827, but the same fix was not applied to
other branches.
Reviewed-by: NTim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2160)

include/openssl/ssl.h

@@ -1258,7 +1258,7 @@ DECLARE_PEM_rw(SSL_SESSION, SSL_SESSION)
 # define SSL_CTX_set1_sigalgs_list(ctx, s) \
         SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)s)
 # define SSL_set1_sigalgs(ctx, slist, slistlen) \
-        SSL_ctrl(ctx,SSL_CTRL_SET_SIGALGS,clistlen,(int *)slist)
+        SSL_ctrl(ctx,SSL_CTRL_SET_SIGALGS,slistlen,(int *)slist)
 # define SSL_set1_sigalgs_list(ctx, s) \
         SSL_ctrl(ctx,SSL_CTRL_SET_SIGALGS_LIST,0,(char *)s)
 # define SSL_CTX_set1_client_sigalgs(ctx, slist, slistlen) \