better arg help text

package-lock.json

@@ -3607,6 +3607,16 @@
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       "dev": true
     },
+    "bindings": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.5.0.tgz",
+      "integrity": "sha512-p2q/t/mhvuOj/UeLlV6566GD/guowlr0hHxClI0W9m7MWYkL1F0hLo+0Aexs9HSPCtR1SXQ0TD3MMKrXZajbiQ==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "file-uri-to-path": "1.0.0"
+      }
+    },
     "block-stream": {
       "version": "0.0.9",
       "resolved": "https://registry.npmjs.org/block-stream/-/block-stream-0.0.9.tgz",
@@ -6247,6 +6257,13 @@
         }
       }
     },
+    "file-uri-to-path": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/file-uri-to-path/-/file-uri-to-path-1.0.0.tgz",
+      "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw==",
+      "dev": true,
+      "optional": true
+    },
     "fill-range": {
       "version": "7.0.1",
       "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
@@ -14217,6 +14234,7 @@
           "dev": true,
           "optional": true,
           "requires": {
+            "bindings": "^1.5.0",
             "nan": "^2.12.1"
           }
         },

src/cli/chem-comp-dict/create-table.ts

@@ -323,7 +323,7 @@ parser.addArgument([ '--binary', '-b' ], {
     help: 'Output as BinaryCIF.'
 });
 parser.addArgument([ '--ionNamesOut', '-ino' ], {
-    help: 'Extract and store ion names.',
+    help: 'Generated file output path to save extracted ion names.',
     required: false
 });
 parser.addArgument(['--ccaOut', '-a'], {