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 acbd57bd525986c58ef7af2497c82a89ca6bcd1a..c7f9a3e08edde7a3580093824f393c07789c363d 100644 (file)
--- a/src/cf.data.pre
+++ b/src/cf.data.pre
@@ -3127,7 +3127,12 @@ 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