patch 9.0.0049: csv and tsv files are not recognized

Problem:    Csv and tsv files are not recognized.
Solution:   Add patterns fo csv and tsv files. (Leandro Lourenci,
            closes #10680)

runtime/filetype.vim

@@ -404,6 +404,9 @@ au BufNewFile,BufRead configure.in,configure.ac setf config
 " Cooklang
 au BufNewFile,BufRead *.cook			setf cook
 
+" CSV Files
+au BufNewFile,BufRead *.csv			setf csv
+
 " CUDA Compute Unified Device Architecture
 au BufNewFile,BufRead *.cu,*.cuh		setf cuda
 
@@ -2028,6 +2031,9 @@ au BufNewFile,BufReadPost *.tssop		setf tssop
 " TSS - Command Line (temporary)
 au BufNewFile,BufReadPost *.tsscl		setf tsscl
 
+" TSV Files
+au BufNewFile,BufRead *.tsv			setf tsv
+
 " TWIG files
 au BufNewFile,BufReadPost *.twig		setf twig
 

src/testdir/test_filetype.vim

@@ -128,6 +128,7 @@ let s:filename_checks = {
     \ 'csp': ['file.csp', 'file.fdr'],
     \ 'css': ['file.css'],
     \ 'cterm': ['file.con'],
+    \ 'csv': ['file.csv'],
     \ 'cucumber': ['file.feature'],
     \ 'cuda': ['file.cu', 'file.cuh'],
     \ 'cupl': ['file.pld'],
@@ -564,6 +565,7 @@ let s:filename_checks = {
     \ 'tsscl': ['file.tsscl'],
     \ 'tssgm': ['file.tssgm'],
     \ 'tssop': ['file.tssop'],
+    \ 'tsv': ['file.tsv'],
     \ 'twig': ['file.twig'],
     \ 'typescript.glimmer': ['file.gts'],
     \ 'typescriptreact': ['file.tsx'],

src/version.c

@@ -735,6 +735,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    49,
 /**/
     48,
 /**/