Update sslcrtd_program configuration directive documentation (#209)

Catch it up with 505f9427c55a365b464f1b204880df1d3ccccb7f.

diff --git a/src/cf.data.pre b/src/cf.data.pre
index f13a7e2b9ea4f435061187c301ba88f55af332df..da82f835b8ace6746d2e9c06ce3631e89c75e217 100644 (file)
--- a/src/cf.data.pre
+++ b/src/cf.data.pre
@@ -3268,7 +3268,12 @@ LOC: Ssl::TheConfig.ssl_crtd
 DOC_START
        Specify the location and options of the executable for certificate
        generator.
-       @DEFAULT_SSL_CRTD@ program requires -s and -M parameters
+
+       @DEFAULT_SSL_CRTD@ program can use a disk cache to improve response
+       times on repeated requests. To enable caching, specify -s and -M
+       parameters. If those parameters are not given, the program generates
+       a new certificate on every request.
+
        For more information use:
                @DEFAULT_SSL_CRTD@ -h
 DOC_END