3.x: Specify proper OSGi unique bundle symbolic name

Author: akarnokd

build.gradle

@@ -89,12 +89,13 @@ jar {
     bnd(
             "Bundle-Name": "rxjava",
             "Bundle-Vendor": "RxJava Contributors",
-            "Bundle-Description": "Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.",
+            "Bundle-Description": "Reactive Extensions for the JVM - a library for composing asynchronous and event-based programs using observable sequences for the Java VM.",
             "Import-Package": "!org.junit,!junit.framework,!org.mockito.*,!org.testng.*,*",
             "Bundle-DocURL": "https://github.com/ReactiveX/RxJava",
             "Eclipse-ExtensibleAPI": "true",
             "Automatic-Module-Name": "io.reactivex.rxjava3",
-            "Export-Package": "!io.reactivex.rxjava3.internal.*, io.reactivex.rxjava3.*"
+            "Export-Package": "!io.reactivex.rxjava3.internal.*, io.reactivex.rxjava3.*",
+            "Bundle-SymbolicName": "io.reactivex.rxjava3.rxjava"
     )
 }