8320781: Fix whitespace in j.l.Double and j.u.z.ZipInputStream @snippets

Reviewed-by: lancea, bpb, darcy, jpai

Author: eirbjo

src/java.base/share/classes/java/lang/Double.java

@@ -316,7 +316,7 @@
  *
  * {@snippet lang="java" :
  * double d = 0.0;
- * while(d != 1.0) { // Surprising infinite loop
+ * while (d != 1.0) { // Surprising infinite loop
  *   d += 0.1; // Sum never _exactly_ equals 1.0
  * }
  * }
@@ -325,7 +325,7 @@
  *
  * {@snippet lang="java" :
  * double d = 0.0;
- * for(int i = 0; i < 10; i++) {
+ * for (int i = 0; i < 10; i++) {
  *   d += 0.1;
  * } // Value of d is equal to Math.nextDown(1.0).
  * }
@@ -335,7 +335,7 @@
  *
  * {@snippet lang="java" :
  *  double d = 0.0;
- *  while(d <= 1.0) {
+ *  while (d <= 1.0) {
  *    d += 0.1;
  *  } // Value of d approximately 1.0999999999999999
  *  }

src/java.base/share/classes/java/util/zip/ZipInputStream.java

@@ -51,12 +51,12 @@
  * {@code ZipInputStream} read methods such
  * as {@link #read(byte[], int, int) read} or {@link #readAllBytes() readAllBytes()}.
  * For example:
- *    {@snippet :
+ *    {@snippet lang="java" :
  *      Path jar = Path.of("foo.jar");
  *      try (InputStream is = Files.newInputStream(jar);
  *           ZipInputStream zis = new ZipInputStream(is)) {
  *          ZipEntry ze;
- *          while((ze= zis.getNextEntry()) != null) {
+ *          while ((ze = zis.getNextEntry()) != null) {
  *             var bytes = zis.readAllBytes();
  *             System.out.printf("Entry: %s, bytes read: %s%n", ze.getName(),
  *                     bytes.length);