tests: Remove trailing commas in JSON tests.

These commas are rejected by Guile-JSON 3.5.0.

* tests/crate.scm (test-foo-dependencies)
(test-root-dependencies, test-intermediate-1-dependencies)
(test-intermediate-2-dependencies): Remove trailing commas.
* tests/gem.scm (test-bar-json): Likewise.
* tests/pypi.scm (test-json): Likewise.

tests/crate.scm

@@ -55,7 +55,7 @@ (define test-foo-dependencies
   \"dependencies\": [
      {
        \"crate_id\": \"bar\",
-       \"kind\": \"normal\",
+       \"kind\": \"normal\"
      }
   ]
 }")
@@ -87,20 +87,20 @@ (define test-root-dependencies
   \"dependencies\": [
      {
        \"crate_id\": \"intermediate-1\",
-       \"kind\": \"normal\",
+       \"kind\": \"normal\"
      },
      {
        \"crate_id\": \"intermediate-2\",
-       \"kind\": \"normal\",
+       \"kind\": \"normal\"
      }
      {
        \"crate_id\": \"leaf-alice\",
-       \"kind\": \"normal\",
+       \"kind\": \"normal\"
      },
      {
        \"crate_id\": \"leaf-bob\",
-       \"kind\": \"normal\",
-     },
+       \"kind\": \"normal\"
+     }
   ]
 }")
 
@@ -131,15 +131,15 @@ (define test-intermediate-1-dependencies
   \"dependencies\": [
      {
        \"crate_id\": \"intermediate-2\",
-       \"kind\": \"normal\",
+       \"kind\": \"normal\"
      },
      {
        \"crate_id\": \"leaf-alice\",
-       \"kind\": \"normal\",
+       \"kind\": \"normal\"
      },
      {
        \"crate_id\": \"leaf-bob\",
-       \"kind\": \"normal\",
+       \"kind\": \"normal\"
      }
   ]
 }")
@@ -171,8 +171,8 @@ (define test-intermediate-2-dependencies
   \"dependencies\": [
      {
        \"crate_id\": \"leaf-bob\",
-       \"kind\": \"normal\",
-     },
+       \"kind\": \"normal\"
+     }
   ]
 }")
 
@@ -233,6 +233,7 @@ (define test-leaf-bob-dependencies
 (define test-source-hash
   "")
 
+
 (test-begin "crate")
 
 (test-equal "guix-package->crate-name"

tests/gem.scm

@@ -52,7 +52,7 @@ (define test-bar-json
   \"homepage_uri\": \"https://example.com\",
   \"dependencies\": {
     \"runtime\": [
-      { \"name\": \"bundler\" },
+      { \"name\": \"bundler\" }
     ]
   },
   \"licenses\": null

tests/pypi.scm

@@ -46,13 +46,13 @@ (define test-json
     \"1.0.0\": [
       {
         \"url\": \"https://example.com/foo-1.0.0.egg\",
-        \"packagetype\": \"bdist_egg\",
+        \"packagetype\": \"bdist_egg\"
       }, {
         \"url\": \"https://example.com/foo-1.0.0.tar.gz\",
-        \"packagetype\": \"sdist\",
+        \"packagetype\": \"sdist\"
       }, {
         \"url\": \"https://example.com/foo-1.0.0-py2.py3-none-any.whl\",
-        \"packagetype\": \"bdist_wheel\",
+        \"packagetype\": \"bdist_wheel\"
       }
     ]
   }
@@ -120,6 +120,7 @@ (define test-metadata-with-extras-jedi "\
 Requires-Dist: pytest (>=3.1.0); extra == 'testing'
 ")
 
+
 (test-begin "pypi")
 
 (test-equal "guix-package->pypi-name, old URL style"