ensure word for word on description

Author: schmikei

instrumentation/jmx-metrics/library/src/main/resources/jmx/rules/jvm.yaml

@@ -101,7 +101,7 @@ rules:
         metric: file_descriptor.count
         type: updowncounter
         unit: "{file_descriptor}"
-        desc: Number of open file descriptors.
+        desc: Number of open file descriptors as reported by the JVM.
 
   - bean: java.nio:name=*,type=BufferPool
     prefix: jvm.buffer.

instrumentation/jmx-metrics/library/src/test/java/io/opentelemetry/instrumentation/jmx/rules/JvmTargetSystemTest.java

@@ -166,7 +166,7 @@ void testJvmMetrics(String image) {
                 "jvm.file_descriptor.count",
                 metric ->
                     metric
-                        .hasDescription("Number of open file descriptors.")
+                        .hasDescription("Number of open file descriptors as reported by the JVM.")
                         .hasUnit("{file_descriptor}")
                         .isUpDownCounter()
                         .hasDataPointsWithoutAttributes())