Merge branch 'fix-grep' into 'master'

Use extended regexp in grep where [0-9]+ used in create_lcg_view_setup_sh.in...

See merge request !2743

cmake/scripts/create_lcg_view_setup_csh.in

@@ -96,7 +96,7 @@ endif
 if ( -f $thisdir/include/Vc/Vc ) then
     set vcdir=`readlink $thisdir/include/Vc/Vc`
     set vcdir=`dirname $vcdir`
-    set std=`cat $vcdir/../../logs/Vc*configure.cmake | \grep -Eo 'CMAKE_CXX_STANDARD=[0-9]+' | \grep -o '[0-9]+'`
+    set std=`cat $vcdir/../../logs/Vc*configure.cmake | \grep -Eo 'CMAKE_CXX_STANDARD=[0-9]+' | \grep -Eo '[0-9]+'`
     setenv CMAKE_CXX_STANDARD ${std}
 endif
 

cmake/scripts/create_lcg_view_setup_sh.in

@@ -104,7 +104,7 @@ fi
 #---Figure out the CMAKE_CXX_STANDARD (using Vc as a victim)
 if [ -f $thisdir/include/Vc/Vc ]; then
     vc_home=$(dirname $(dirname $(dirname $(readlink $thisdir/include/Vc/Vc))))
-    std=$(cat $vc_home/logs/Vc*configure.cmake | \grep -Eo "CMAKE_CXX_STANDARD=[0-9]+" | \grep -o "[0-9]+")
+    std=$(cat $vc_home/logs/Vc*configure.cmake | \grep -Eo "CMAKE_CXX_STANDARD=[0-9]+" | \grep -Eo "[0-9]+")
     export CMAKE_CXX_STANDARD=$std
 fi