Fix account rc files creation for Swift users

Id02ebdfa5cb3f6c763293876c6bb031184ebd663 introduced a small
regression which makes the command x509-create-cert fail with
'ERROR (CommandError): Invalid OpenStack Nova credentials.' for
Swift users.

The handling of specific password for Swift users was introduced
in Ifb57a43aad439ffe041e98465719a8a8eceae544

Change-Id: I3f328b1358bad0bdf7056796eabfe846dd5bae3a
diff --git a/lib/swift b/lib/swift
index 21ed920..15bd2a9 100644
--- a/lib/swift
+++ b/lib/swift
@@ -557,9 +557,11 @@
 
 function create_swift_accounts {
     # Defines specific passwords used by tools/create_userrc.sh
-    local swiftusertest1_password=testing
-    local swiftusertest2_password=testing2
-    local swiftusertest3_password=testing3
+    # As these variables are used by create_userrc.sh, they must be exported
+    # The _password suffix is expected by create_userrc.sh
+    export swiftusertest1_password=testing
+    export swiftusertest2_password=testing2
+    export swiftusertest3_password=testing3
 
     KEYSTONE_CATALOG_BACKEND=${KEYSTONE_CATALOG_BACKEND:-sql}
 
diff --git a/tools/create_userrc.sh b/tools/create_userrc.sh
index 6a07be4..b43fd88 100755
--- a/tools/create_userrc.sh
+++ b/tools/create_userrc.sh
@@ -254,7 +254,8 @@
 
             # Checks for a specific password defined for an user.
             # Example for an username johndoe: JOHNDOE_PASSWORD=1234
-            eval SPECIFIC_UPASSWORD="\$${USER_NAME^^}_PASSWORD"
+            # This mechanism is used by lib/swift
+            eval SPECIFIC_UPASSWORD="\$${user_name}_password"
             if [ -n "$SPECIFIC_UPASSWORD" ]; then
                 USER_PASS=$SPECIFIC_UPASSWORD
             fi