Fixes #1014 Two Nikon lenses still not detected

(cherry picked from commit 19d089c5a468efb7c87837b26e6459674965f037)

README.md

@@ -72,7 +72,7 @@ cd $EXIV_ROOT
 mkdir build && cd build
 cmake .. -DCMAKE_BUILD_TYPE=Release
 cmake --build .
-make test
+make tests
 sudo make install
 ```
 

tests/bugfixes/github/test_issue_1014.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+
+import system_tests
+
+
+class NikonLens(metaclass=system_tests.CaseMeta):
+
+    filenames = ["$data_path/exiv2-bug1014.exv", "$data_path/exiv2-bug1014_2.exv"]
+    commands = ["$exiv2 -pa --grep lens/i %s" % filenames[0], "$exiv2 -pa --grep lens/i %s" % filenames[1]]
+
+    stdout = ["""Exif.Nikon3.LensType                         Byte        1  D G VR
+Exif.Nikon3.Lens                             Rational    4  24-70mm F2.8
+Exif.Nikon3.LensFStops                       Undefined   4  6
+Exif.NikonLd3.LensIDNumber                   Byte        1  Nikon AF-S Nikkor 24-70mm f/2.8E ED VR
+Exif.NikonLd3.LensFStops                     Byte        1  F6.0
+""",
+              """Exif.Nikon3.LensType                         Byte        1  D G VR
+Exif.Nikon3.Lens                             Rational    4  70-200mm F2.8
+Exif.Nikon3.LensFStops                       Undefined   4  6
+Exif.NikonLd3.LensIDNumber                   Byte        1  Nikon AF-S Nikkor 70-200mm f/2.8E FL ED VR
+Exif.NikonLd3.LensFStops                     Byte        1  F6.0
+"""
+              ]
+    stderr = ["", ""]
+    retval = [0, 0]