add miltilines in OpenWatcom makefiles

auto/cc/owc

diff --git a/auto/cc/owc b/auto/cc/owc
index bd0cd40..39c180a 100644
--- a/auto/cc/owc
+++ b/auto/cc/owc
@@ -88,8 +88,16 @@
 ngx_regex_dirsep='\\'
 ngx_dirsep="\\"
 
-ngx_regex_cont=' '
-ngx_long_regex_cont=' '
-ngx_cont=' '
-ngx_long_cont=' '
-ngx_tab=' '
+ngx_long_start=' '
+ngx_long_end=' '
+ngx_long_regex_cont=' \&\
+	'
+ngx_long_cont=' &
+	'
+
+ngx_regex_cont=' \&\
+	'
+ngx_cont=' &
+	'
+ngx_tab=' &
+		'

auto/lib/zlib/makefile.owc

diff --git a/auto/lib/zlib/makefile.owc b/auto/lib/zlib/makefile.owc
index 13ee0e1..738e9a0 100644
--- a/auto/lib/zlib/makefile.owc
+++ b/auto/lib/zlib/makefile.owc
@@ -7,5 +7,7 @@
 zlib.lib:
 	cd $(ZLIB)
 
-	wcl386 -c $(CFLAGS) adler32.c crc32.c deflate.c trees.c zutil.c compress.c
-	wlib -n zlib.lib adler32.obj crc32.obj deflate.obj trees.obj zutil.obj compress.obj
+	wcl386 -c $(CFLAGS) adler32.c crc32.c deflate.c trees.c zutil.c &
+		compress.c
+	wlib -n zlib.lib adler32.obj crc32.obj deflate.obj trees.obj &
+		zutil.obj compress.obj