hdf5: Correct spelling (#4172)

* hdf5: Correct spelling

* hdf5: avoid trailing spaces

var/spack/repos/builtin/packages/hdf5/package.py

@@ -79,11 +79,11 @@ class Hdf5(AutotoolsPackage):
 
     @property
     def libs(self):
-        """Hdf5 can be queried for the following parameters:
+        """HDF5 can be queried for the following parameters:
 
         - "hl": high-level interface
         - "cxx": C++ APIs
-        - "fortran": fortran APIs
+        - "fortran": Fortran APIs
 
         :return: list of matching libraries
         """
@@ -144,7 +144,7 @@ def libs(self):
     def fortran_check(self):
         spec = self.spec
         if '+fortran' in spec and not self.compiler.fc:
-            msg = 'cannot build a fortran variant without a fortran compiler'
+            msg = 'cannot build a Fortran variant without a Fortran compiler'
             raise RuntimeError(msg)
 
     def configure_args(self):