Fix errors

Author: cstamas

src/main/java/org/codehaus/plexus/components/secdispatcher/internal/sources/EnvMasterPasswordSource.java

@@ -41,7 +41,7 @@ public String handle(URI uri) throws SecDispatcherException {
         }
         String value = System.getenv(uri.getSchemeSpecificPart());
         if (value == null) {
-            throw new SecDispatcherException("Environment variable '" + uri.getPath() + "' not found");
+            throw new SecDispatcherException("Environment variable '" + uri.getSchemeSpecificPart() + "' not found");
         }
         return value;
     }

src/main/java/org/codehaus/plexus/components/secdispatcher/internal/sources/SystemPropertyMasterPasswordSource.java

@@ -41,7 +41,7 @@ public String handle(URI uri) throws SecDispatcherException {
         }
         String value = System.getProperty(uri.getSchemeSpecificPart());
         if (value == null) {
-            throw new SecDispatcherException("System property '" + uri.getPath() + "' not found");
+            throw new SecDispatcherException("System property '" + uri.getSchemeSpecificPart() + "' not found");
         }
         return value;
     }