Make the PKI scripts work with /bin/sh.

Refs #6002

pki/icinga2-build-ca.cmake

@@ -1,7 +1,7 @@
 #!/bin/sh
 ICINGA2PKIDIR=@CMAKE_INSTALL_FULL_DATADIR@/icinga2/pki
 
-source $ICINGA2PKIDIR/pkifuncs
+. $ICINGA2PKIDIR/pkifuncs
 
 check_pki_dir
 
@@ -16,7 +16,7 @@ echo '01' > $ICINGA_CA/serial
 touch $ICINGA_CA/index.txt
 
 cp $ICINGA2PKIDIR/vars $ICINGA_CA/
-source $ICINGA_CA/vars
+. $ICINGA_CA/vars
 
 KEY_DIR=$ICINGA_CA openssl req -config $ICINGA2PKIDIR/openssl.cnf -new -newkey rsa:4096 -x509 -days 3650 -keyform PEM -keyout $ICINGA_CA/ca.key -outform PEM -out $ICINGA_CA/ca.crt && \
 	chmod 600 $ICINGA_CA/ca.key && \

pki/icinga2-build-key.cmake

@@ -1,7 +1,7 @@
 #!/bin/sh
 ICINGA2PKIDIR=@CMAKE_INSTALL_FULL_DATADIR@/icinga2/pki
 
-source $ICINGA2PKIDIR/pkifuncs
+. $ICINGA2PKIDIR/pkifuncs
 
 if [ -z "$1" ]; then
 	echo "Syntax: $0 <name>" >&2
@@ -17,7 +17,7 @@ if [ ! -f $ICINGA_CA/ca.crt -o ! -f $ICINGA_CA/ca.key ]; then
 	exit 1
 fi
 
-[ -f $ICINGA_CA/vars ] && source $ICINGA_CA/vars
+[ -f $ICINGA_CA/vars ] && . $ICINGA_CA/vars
 
 [ -z "$REQ_COUNTRY_NAME" ] && export REQ_COUNTRY_NAME="AU"
 [ -z "$REQ_STATE" ] && export REQ_STATE="Some-State"

pki/icinga2-sign-key.cmake

@@ -1,7 +1,7 @@
 #!/bin/sh
 ICINGA2PKIDIR=@CMAKE_INSTALL_FULL_DATADIR@/icinga2/pki
 
-source $ICINGA2PKIDIR/pkifuncs
+. $ICINGA2PKIDIR/pkifuncs
 
 if [ -z "$1" ]; then
 	echo "Syntax: $0 <csr-file>" >&2
@@ -24,7 +24,7 @@ if [ ! -f $ICINGA_CA/ca.crt -o ! -f $ICINGA_CA/ca.key ]; then
 	exit 1
 fi
 
-[ -f $ICINGA_CA/vars ] && source $ICINGA_CA/vars
+[ -f $ICINGA_CA/vars ] && . $ICINGA_CA/vars
 
 openssl x509 -days "$REQ_DAYS" -CA $ICINGA_CA/ca.crt -CAkey $ICINGA_CA/ca.key -req -in $ICINGA_CA/$csrfile -outform PEM -out $ICINGA_CA/$pubkfile.crt -CAserial $ICINGA_CA/serial
 

pki/pkifuncs

@@ -1,4 +1,4 @@
-function check_pki_dir {
+check_pki_dir() {
 	if [ -z "$ICINGA_CA" ]; then
 		echo "Please set the ICINGA_CA environment variable to the path for your Icinga CA." >&2
 		echo "e.g.: export ICINGA_CA=\"$HOME/icinga-ca\"" >&2