Update Package Creation Tutorial for PEARC19 (#12209)

* Update Package Creation Tutorial for PEARC19

* A few remaining fixes

* Fix section link

var/spack/repos/builtin/packages/mpileaks/package.py

@@ -7,22 +7,33 @@
 
 
 class Mpileaks(AutotoolsPackage):
-    """Tool to detect and report leaked MPI objects like MPI_Requests and
-       MPI_Datatypes."""
+    """Tool to detect and report MPI objects like MPI_Requests and
+    MPI_Datatypes."""
 
-    homepage = "https://github.com/hpc/mpileaks"
-    url      = "https://github.com/hpc/mpileaks/releases/download/v1.0/mpileaks-1.0.tar.gz"
+    homepage = "https://github.com/LLNL/mpileaks"
+    url      = "https://github.com/LLNL/mpileaks/releases/download/v1.0/mpileaks-1.0.tar.gz"
 
-    version('1.0', '8838c574b39202a57d7c2d68692718aa')
+    version('1.0', sha256='2e34cc4505556d1c1f085758e26f2f8eea0972db9382f051b2dcfb1d7d9e1825')
 
-    depends_on("mpi")
-    depends_on("adept-utils")
-    depends_on("callpath")
+    variant('stackstart', values=int, default=0,
+            description='Specify the number of stack frames to truncate')
+
+    depends_on('mpi')
+    depends_on('adept-utils')
+    depends_on('callpath')
 
     def configure_args(self):
-        args = []
+        stackstart = int(self.spec.variants['stackstart'].value)
 
-        args.append("--with-adept-utils=%s" % self.spec['adept-utils'].prefix)
-        args.append("--with-callpath=%s" % self.spec['callpath'].prefix)
+        args = [
+            '--with-adept-utils={0}'.format(self.spec['adept-utils'].prefix),
+            '--with-callpath={0}'.format(self.spec['callpath'].prefix),
+        ]
+
+        if stackstart:
+            args.extend([
+                '--with-stack-start-c={0}'.format(stackstart),
+                '--with-stack-start-fortran={0}'.format(stackstart)
+            ])
 
         return args