Improve coverage

Author: henryju

core/src/main/java/org/sonarsource/sonarlint/core/telemetry/TelemetryPayload.java

@@ -108,11 +108,11 @@ public boolean connectedModeSonarcloud() {
     return connectedModeSonarcloud;
   }
 
-  public String getOs() {
+  public String os() {
     return os;
   }
 
-  public String getJre() {
+  public String jre() {
     return jre;
   }
 

core/src/test/java/org/sonarsource/sonarlint/core/telemetry/TelemetryPayloadTest.java

@@ -60,6 +60,8 @@ public void testGenerationJson() {
     assertThat(m.version()).isEqualTo("2.4");
     assertThat(m.connectedMode()).isTrue();
     assertThat(m.analyses()).hasSize(1);
+    assertThat(m.os()).isEqualTo("Windows 10");
+    assertThat(m.jre()).isEqualTo("1.8.0");
     assertThat(m.connectedModeSonarcloud()).isTrue();
     assertThat(m.systemTime()).isEqualTo(systemTime);
   }