Added help verbiage for --ecc flag

acme.sh

@@ -1553,7 +1553,7 @@ createDomainKey() {
 createCSR() {
   _info "Creating csr"
   if [ -z "$1" ]; then
-    _usage "Usage: $PROJECT_ENTRY --create-csr --domain <domain.tld> [--domain <domain2.tld> ...]"
+    _usage "Usage: $PROJECT_ENTRY --create-csr --domain <domain.tld> [--domain <domain2.tld> ...] [--ecc]"
     return
   fi
 
@@ -6936,7 +6936,8 @@ Parameters:
   --no-profile                      Only valid for '--install' command, which means: do not install aliases to user profile.
   --no-color                        Do not output color text.
   --force-color                     Force output of color text. Useful for non-interactive use with the aha tool for HTML E-Mails.
-  --ecc                             Specifies to use the ECC cert. Valid for '--install-cert', '--renew', '--revoke', '--to-pkcs12' and '--create-csr'
+  --ecc                             Specifies use of the ECC cert. Only valid for '--install-cert', '--renew', '--remove ', '--revoke',
+                                      '--deploy', '--to-pkcs8', '--to-pkcs12' and '--create-csr'.
   --csr <file>                      Specifies the input csr.
   --pre-hook <command>              Command to be run before obtaining any certificates.
   --post-hook <command>             Command to be run after attempting to obtain/renew certificates. Runs regardless of whether obtain/renew succeeded or failed.