Declare some additional variables

Further fixes for #167 pointed out by bjoernv.  Thanks!

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

ChangeLog

@@ -5,6 +5,8 @@ Easy-RSA 3 ChangeLog
     * Integrate with Travis-CI (#165)
     * Remove "local" from variable assignment (#165)
         * Other changes related to Travis-CI fixes
+	* Assign values (even empty ones) to variables defined previously with
+	  "local"
 
 3.0.3 (2017-08-22)
     * Include mktemp windows binary

easyrsa3/easyrsa

@@ -960,7 +960,8 @@ default_server_san() {
 
 # verify a file seems to be a valid req/X509
 verify_file() {
-	format="$1" path="$2"
+	format="$1" 
+	path="$2"
 	"$EASYRSA_OPENSSL" $format -in "$path" -noout 2>/dev/null || return 1
 	return 0
 } # => verify_file()
@@ -968,7 +969,10 @@ verify_file() {
 # show-* command backend
 # Prints req/cert details in a readable format
 show() {
-	type="$1" name="$2" in_file format
+	type="$1" 
+	name="$2" 
+	in_file=""
+	format=""
 	[ -n "$name" ] || die "\
 Missing expected filename_base argument.
 Run easyrsa without commands for usage help."