Fix vercmp and add additional tests

This vercmp issue has been a sticking point but this should resolve many of
the issues that have come up. Only a few minor code changes were necessary
to get the behavior we desired, and this version appears to beat any other
vercmp rendition on a few more cases added in this commit.

This commit passes all 58 vercmp tests currently out there. Other 'fixes'
still fail on a few tests, namely these ones:

test: ver1: 1.5.a ver2: 1.5 ret: -1 expected: 1
  ==> FAILURE
test: ver1: 1.5 ver2: 1.5.a ret: 1 expected: -1
  ==> FAILURE
test: ver1: 1.5-1 ver2: 1.5.b ret: 1 expected: -1
  ==> FAILURE
test: ver1: 1.5.b ver2: 1.5-1 ret: -1 expected: 1
  ==> FAILURE
4 of 58 tests failed

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/pacman.8.txt b/doc/pacman.8.txt
index 9e56a54e..0a632ea9 100644
--- a/doc/pacman.8.txt
+++ b/doc/pacman.8.txt
@@ -67,7 +67,7 @@ You can also use `pacman -Su` to upgrade all packages that are out of date. See
 to determine which packages need upgrading. This behavior operates as follows:
 
   Alphanumeric:
-    1.0 < 1.0a < 1.0alpha < 1.0b < 1.0beta < 1.0p < 1.0pre < 1.0rc
+    1.0a < 1.0alpha < 1.0b < 1.0beta < 1.0p < 1.0pre < 1.0rc < 1.0
   Numeric:
     1 < 1.0 < 1.1 < 1.1.1 < 1.2 < 2.0 < 3.0.0