[FFmpeg-cvslog] Replace `` by $() syntax in shell scripts.

[Diego Biurrun]

ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Tue Apr 19 00:16:24 2011 +0200| [6252040e773c30efa21c743124d5e813320a0ec2] | committer: Diego Biurrun

Replace `` by $() syntax in shell scripts.

$() is easier to nest and POSIX, which we require in other places.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6252040e773c30efa21c743124d5e813320a0ec2
---

 tools/clean-diff |    2 +-
 tools/patcheck   |   14 +++++++-------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/tools/clean-diff b/tools/clean-diff
index 98e26a7..4600702 100755
--- a/tools/clean-diff
+++ b/tools/clean-diff
@@ -1,6 +1,6 @@
 #!/bin/sh
 sed '/^+[^+]/!s/	/TaBBaT/g' |\
- expand -t `seq -s , 9 8 200` |\
+ expand -t $(seq -s , 9 8 200) |\
  sed 's/TaBBaT/	/g' |\
  sed '/^+[^+]/s/ * $//' |\
  tr -d '\015' |\
diff --git a/tools/patcheck b/tools/patcheck
index d81a489..a8c0cc8 100755
--- a/tools/patcheck
+++ b/tools/patcheck
@@ -12,7 +12,7 @@ GREP=grep
 EGREP=egrep
 TMP=patcheck.tmp
 OPT="-nH"
-#FILES=`$GREP '^+++' $* | sed 's/+++ //g'`
+#FILES=$($GREP '^+++' $* | sed 's/+++ //g')
 
 echo patCHeck 1e10.0
 echo This tool is intended to help a human check/review patches it is very far from
@@ -43,7 +43,7 @@ hiegrep2(){
 }
 
 hiegrep '[[:space:]]$'    'trailing whitespace' $*
-hiegrep "`echo x | tr 'x' '\t'`"         'tabs' $*
+hiegrep "$(echo x | tr 'x' '\t')"         'tabs' $*
 #hiegrep ':\+$'          'Empty lines' $*
 hiegrep ';;'              'double ;' $*
 hiegrep2 '\b_[a-zA-Z0-9_]{1,}' '__(asm|attribute)([^a-zA-Z0-9]|$)' 'reserved identifer' $*
@@ -106,9 +106,9 @@ hiegrep ':\+  *{ *$' '{ should be on the same line as the related previous state
 
 
 rm $TMP
-for i in `$GREP -H '^+.*@param' $*| sed 's/^\([^:]*\):.*@param\(\[.*\]\|\) *\([a-zA-Z0-9_]*\) .*$/\1:\3/'` ; do
-    doxpar=`echo $i | sed 's/^.*:\(.*\)$/\1/'`
-    file=`echo $i | sed 's/^\([^:]*\):.*$/\1/'`
+for i in $($GREP -H '^+.*@param' $*| sed 's/^\([^:]*\):.*@param\(\[.*\]\|\) *\([a-zA-Z0-9_]*\) .*$/\1:\3/') ; do
+    doxpar=$(echo $i | sed 's/^.*:\(.*\)$/\1/')
+    file=$(echo $i | sed 's/^\([^:]*\):.*$/\1/')
     $GREP " *$doxpar *[),]" $file | $GREP -v '@param' >/dev/null || $GREP --color=always "@param *$doxpar" $file >>$TMP
 done
 if test -e $TMP ; then
@@ -121,11 +121,11 @@ cat $TMP
 
 rm $TMP
 for i in \
-    `$EGREP -H '^\+ *'"$ERE_TYPES" $* |\
+    $($EGREP -H '^\+ *'"$ERE_TYPES" $*  |\
     $GREP -v '(' | $EGREP -v '\Wgoto\W' |\
     xargs -d '\n' -n 1 |\
     $GREP -o '[* ][* ]*[a-zA-Z][0-9a-zA-Z_]* *[,;=]' |\
-    sed 's/.[* ]*\([a-zA-Z][0-9a-zA-Z_]*\) *[,;=]/\1/'` \
+    sed 's/.[* ]*\([a-zA-Z][0-9a-zA-Z_]*\) *[,;=]/\1/') \
     ; do
     echo $i | $GREP '^NULL$' && continue
     $EGREP $i' *(\+|-|\*|/|\||&|%|)=[^=]' $* >/dev/null || echo "possibly never written:"$i >> $TMP