Improv detection of rare ibmpl-1.0

Signed-off-by: Philippe Ombredanne <[email protected]>

Author: pombredanne

src/licensedcode/data/rules/ibmpl-1.0_8.RULE

@@ -0,0 +1,5 @@
+distributed under the IBM Public
+   License (IPL). The IPL is an approved open source license (see
+   http://www.opensource.org/licenses/ for a list). It grants similar
+   rights to the previous ALPHAWORKS license agreement, in particular,
+   the right to redistribute and to modify the package

src/licensedcode/data/rules/ibmpl-1.0_8.yml

@@ -0,0 +1,5 @@
+license_expression: ibmpl-1.0
+is_license_notice: yes
+relevance: 100
+ignorable_urls:
+    - http://www.opensource.org/licenses/

tests/licensedcode/data/licenses/ibmpl-1.0_1.txt.yml

@@ -1,5 +1,3 @@
 license_expressions:
   - ibmpl-1.0
-  - free-unknown
-  - unknown
 notes: markup