diff --git a/.gitignore b/.gitignore
index 5ea0c648e..8419b131e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,9 +21,12 @@ configure
 /m4/*
 !/m4/ax_*.m4
 
+# build-aux/release.mk related litter
+/.tarball-version
+/tag-*
+
 libtool
 .version
-.tarball-version
 libqb.spec
 libqb-*
 cov
diff --git a/build-aux/release.mk b/build-aux/release.mk
index 3f1b1f924..d4d195b3c 100644
--- a/build-aux/release.mk
+++ b/build-aux/release.mk
@@ -66,7 +66,7 @@ $(project)-$(version).sha256:
 
 .PHONY: sign
 ifeq (,$(gpgsignkey))
-sign: tarballs
+sign: $(deliverables)
 	@echo No GPG signing key defined
 else
 sign: $(deliverables:=.asc)
diff --git a/docs/man8/qb-blackbox.8 b/docs/man8/qb-blackbox.8
index 976848cc7..3df924d25 100644
--- a/docs/man8/qb-blackbox.8
+++ b/docs/man8/qb-blackbox.8
@@ -18,14 +18,22 @@
 .\" * You should have received a copy of the GNU Lesser General Public License
 .\" * along with libqb.  If not, see <http://www.gnu.org/licenses/>.
 .\" */
-.TH QB-BLACKBOX 8 2012-05-28
+.TH QB-BLACKBOX 8 2017-07-27
 .SH NAME
 qb-blackbox \- Display "flight data" from the "blackbox".
 .SH SYNOPSIS
-.B "qb-blackbox <blackbox files>..."
+\fBqb-blackbox\fR [\fIblackbox-file\fR...]
 .SH DESCRIPTION
-.B qb-blackbox
-Print out the logs (including debug logs) that were recorded using libqb's blackbox.
+\fBqb-blackbox\fR prints out the logs (including debug logs) that were
+recorded using libqb's blackbox mechanism.
+.SS Portability notes
+Due to variations amongst platforms, some of which directly impact
+the libqb's blackbox format handling (e.g. page size), there's currently
+only the commitment that \fBqb-blackbox\fR shall decode the blackbox files
+recorded at the same plaform (plus the same page size) while using libqb
+compiled with the same relevant compile-time options
+(e.g. \fBUSE_CACHE_LINE_ALIGNMENT\fR) as linked to this decoder.
+Otherwise, your mileage may vary.
 .SH EXAMPLES
 .TP
 Get info to help developers diagnose a crash.
@@ -53,7 +61,7 @@ Mar 23 20:58:57 member_object_joined():301 Member joined: r(0) ip(192.168.122.1)
 Mar 23 20:58:57 sync_abort():594 ENTERING sync_abort()
 .br
 .SH SEE ALSO
-.BR qblog.h (3),
+.BR qblog.h (3)
 .SH AUTHOR
 Angus Salkeld
 .PP
diff --git a/include/qb/qbloop.h b/include/qb/qbloop.h
index ff5a7d263..6bded75bb 100644
--- a/include/qb/qbloop.h
+++ b/include/qb/qbloop.h
@@ -189,7 +189,7 @@ int32_t qb_loop_poll_low_fds_event_set(qb_loop_t *l,
 
 /**
  * Add a poll job to the mainloop.
- * @note it is a re-occuring job.
+ * @note it is a re-occurring job.
  *
  * @param l pointer to the loop instance
  * @param p the priority
diff --git a/include/qb/qbrb.h b/include/qb/qbrb.h
index 6a51d7308..cde793d48 100644
--- a/include/qb/qbrb.h
+++ b/include/qb/qbrb.h
@@ -171,7 +171,7 @@ ssize_t qb_rb_chunk_write(qb_ringbuffer_t * rb, const void *data, size_t len);
  * Allocate space for a chunk of the given size.
  *
  * If type == QB_RB_FLAG_OVERWRITE and NULL is returned, memory corruption of
- * the memory file has occured. The ringbuffer should be destroyed.
+ * the memory file has occurred. The ringbuffer should be destroyed.
  * If type == QB_RB_NORMAL then when there is not enough space it will
  * return NULL.
  *