Fix: notice() and warn() returned error in batch

Merge branch 'madmajestro-imrove-returncode-notice-and-warn'

This resolves a bug where the warn() and notice() functions would
produce a non-zero exit during batch mode operations.  This bug was
introduced by me in 09e2c3b.

Signed-off-by: Eric F Crist <ecrist@secure-computing.net>

easyrsa3/easyrsa

@@ -262,7 +262,7 @@ Deprecated features:
 
 # Wrapper around printf - clobber print since it's not POSIX anyway
 # shellcheck disable=SC1117
-print() { printf "%s\n" "$*"; }
+print() { printf "%s\n" "$*" || exit 1; }
 
 # Exit fatally with a message to stderr
 # present even with EASYRSA_BATCH as these are fatal problems
@@ -279,6 +279,8 @@ warn() {
 	[ ! "$EASYRSA_BATCH" ] && \
 		print "
 $1" 1>&2
+
+	return 0
 } # => warn()
 
 # informational notices to stdout
@@ -286,6 +288,8 @@ notice() {
 	[ ! "$EASYRSA_BATCH" ] && \
 		print "
 $1"
+
+	return 0
 } # => notice()
 
 # yes/no case-insensitive match (operates on stdin pipe)