vendor/bc: upgrade to version 6.7.2vendor/bc/6.7.2

This update improves the implementation of the power function p() and
adds 3 new functions to the extended math library: min(), max(), and
i2rand().

1 files changed, 22 insertions, 0 deletions

diff --git a/NEWS.md b/NEWS.md
index de3b35026fea..d4b160d74d35 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,27 @@
 # News
 
+## 6.7.2
+
+This is a production release to remove some debugging code that I accidentally
+committed.
+
+## 6.7.1
+
+This is a production release with a bug fix for `SIGINT` only being handled
+once.
+
+## 6.7.0
+
+This is a production release with three new functions in the [extended math
+library][16]: `min()`, `max()`, and `i2rand()`.
+
+## 6.6.1
+
+This is a production release with an improved `p()` function in the [extended
+math library][16].
+
+Users who don't care do not need to upgrade.
+
 ## 6.6.0
 
 This is a production release with two bug fixes and one change.