doc: fix various typos and grammar errors

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 99d68d462fbd777cfd3fe055d4181a6f7c03fac7)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 4 insertions, 4 deletions

diff --git a/doc/fftools-common-opts.texi b/doc/fftools-common-opts.texi
index 509c8bca7c..a8e485f43a 100644
--- a/doc/fftools-common-opts.texi
+++ b/doc/fftools-common-opts.texi
@@ -176,10 +176,10 @@ loglevel will be used. If multiple loglevel parameters are given, using
 Show nothing at all; be silent.
 @item panic, 0
 Only show fatal errors which could lead the process to crash, such as
-and assert failure. This is not currently used for anything.
+an assertion failure. This is not currently used for anything.
 @item fatal, 8
 Only show fatal errors. These are errors after which the process absolutely
-cannot continue after.
+cannot continue.
 @item error, 16
 Show all errors, including ones which can be recovered from.
 @item warning, 24
@@ -195,13 +195,13 @@ Show everything, including debugging information.
 @item trace, 56
 @end table
 
-By default the program logs to stderr, if coloring is supported by the
+By default the program logs to stderr. If coloring is supported by the
 terminal, colors are used to mark errors and warnings. Log coloring
 can be disabled setting the environment variable
 @env{AV_LOG_FORCE_NOCOLOR} or @env{NO_COLOR}, or can be forced setting
 the environment variable @env{AV_LOG_FORCE_COLOR}.
 The use of the environment variable @env{NO_COLOR} is deprecated and
-will be dropped in a following FFmpeg version.
+will be dropped in a future FFmpeg version.
 
 @item -report
 Dump full command line and console output to a file named