Some grammatical fixes
diff --git a/has-project/has-server/src/main/java/org/apache/kerby/has/server/HasServer.java b/has-project/has-server/src/main/java/org/apache/kerby/has/server/HasServer.java
index 94c26a1..5991e55 100644
--- a/has-project/has-server/src/main/java/org/apache/kerby/has/server/HasServer.java
+++ b/has-project/has-server/src/main/java/org/apache/kerby/has/server/HasServer.java
@@ -181,8 +181,8 @@
         kadmin.createBuiltinPrincipals();
         kadmin.exportKeytab(adminKeytabFile, kadmin.getKadminPrincipal());
         System.out.println("The keytab for kadmin principal "
-            + " has been exported to the specified file "
-            + adminKeytabFile.getAbsolutePath() + ", please safely keep it, "
+            + "has been exported to the specified file "
+            + adminKeytabFile.getAbsolutePath() + ", please keep it safe, "
             + "in order to use kadmin tool later");
 
         return adminKeytabFile;
diff --git a/kerby-tool/kdc-tool/src/main/java/org/apache/kerby/kerberos/tool/kdcinit/KdcInitTool.java b/kerby-tool/kdc-tool/src/main/java/org/apache/kerby/kerberos/tool/kdcinit/KdcInitTool.java
index b9f8666..ada10cd 100644
--- a/kerby-tool/kdc-tool/src/main/java/org/apache/kerby/kerberos/tool/kdcinit/KdcInitTool.java
+++ b/kerby-tool/kdc-tool/src/main/java/org/apache/kerby/kerberos/tool/kdcinit/KdcInitTool.java
@@ -54,7 +54,7 @@
             kadmin.exportKeytab(adminKeytabFile, kadmin.getKadminPrincipal());
             System.out.println("The keytab for kadmin principal "
                     + "has been exported to the specified file "
-                    + adminKeytabFile.getAbsolutePath() + ", please safely keep it, "
+                    + adminKeytabFile.getAbsolutePath() + ", please keep it safe, "
                     + "in order to use kadmin tool later");
 
             // Export protocol keytab file for remote admin tool
@@ -65,8 +65,8 @@
             kadmin.addPrincipal(principal);
             kadmin.exportKeytab(protocolKeytabFile, principal);
             System.out.println("The keytab for protocol principal "
-                    + " has been exported to the specified file "
-                    + protocolKeytabFile.getAbsolutePath() + ", please safely keep it, "
+                    + "has been exported to the specified file "
+                    + protocolKeytabFile.getAbsolutePath() + ", please keep it safe, "
                     + "in order to use remote kadmin tool later");
         } finally {
             kadmin.release();