[OE-core] [PATCH 2/3] package_ipk.bbclass: make DESCRIPTION support newline

[Robert Yang]

The recipe's DESCRIPTION is wrapped automatically by textwrap, make it
support newline ("\n") to let the user can wrap it manually, e.g.:

DESCRIPTION = "Foo1\nFoo2"

In the past, it would be:
Foo1\nFoo2

Now:
Foo1
Foo2

[YOCTO #4348]

Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
---
 meta/classes/package_ipk.bbclass |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/meta/classes/package_ipk.bbclass b/meta/classes/package_ipk.bbclass
index 55628e4..e67f641 100644
--- a/meta/classes/package_ipk.bbclass
+++ b/meta/classes/package_ipk.bbclass
@@ -304,10 +304,11 @@ python do_package_ipk () {
                 # Special behavior for description...
                 if 'DESCRIPTION' in fs:
                     summary = localdata.getVar('SUMMARY', True) or localdata.getVar('DESCRIPTION', True) or "."
+                    ctrlfile.write('Description: %s\n' % summary)
                     description = localdata.getVar('DESCRIPTION', True) or "."
                     description = textwrap.dedent(description).strip()
-                    ctrlfile.write('Description: %s\n' % summary)
-                    ctrlfile.write('%s\n' % textwrap.fill(description, width=74, initial_indent=' ', subsequent_indent=' '))
+                    for t in description.split('\\n'):
+                        ctrlfile.write('%s\n' % textwrap.fill(t, width=74, initial_indent=' ', subsequent_indent=' '))
                 else:
                     ctrlfile.write(c % tuple(pullData(fs, localdata)))
         except KeyError:
-- 
1.7.10.4