Improve help consistency.

More consistent tense, capitalization, and punctuation. A few commands were
missing an introductory line, so I copied those from the first comment
line.

6 files changed, 7 insertions, 5 deletions

diff --git a/toys/posix/comm.c b/toys/posix/comm.c
index 33c056d3..c5c8f851 100644
--- a/toys/posix/comm.c
+++ b/toys/posix/comm.c
@@ -13,7 +13,7 @@ config COMM
   help
     usage: comm [-123] FILE1 FILE2
 
-    Reads FILE1 and FILE2, which should be ordered, and produces three text
+    Read FILE1 and FILE2, which should be ordered, and produce three text
     columns as output: lines only in FILE1; lines only in FILE2; and lines
     in both files. Filename "-" is a synonym for stdin.
 
diff --git a/toys/posix/cp.c b/toys/posix/cp.c
index 5e1a0163..ddbfe125 100644
--- a/toys/posix/cp.c
+++ b/toys/posix/cp.c
@@ -66,7 +66,7 @@ config MV
   bool "mv"
   default y
   help
-    usage: mv [-fivn] SOURCE... DEST"
+    usage: mv [-fivn] SOURCE... DEST
 
     -f	Force copy by deleting destination file
     -i	Interactive, prompt before overwriting existing DEST
diff --git a/toys/posix/cpio.c b/toys/posix/cpio.c
index 80567fd6..97b4035f 100644
--- a/toys/posix/cpio.c
+++ b/toys/posix/cpio.c
@@ -25,7 +25,7 @@ config CPIO
     usage: cpio -{o|t|i|p DEST} [-v] [--verbose] [-F FILE] [--no-preserve-owner]
            [ignored: -mdu -H newc]
 
-    copy files into and out of a "newc" format cpio archive
+    Copy files into and out of a "newc" format cpio archive.
 
     -F FILE	Use archive FILE instead of stdin/stdout
     -p DEST	Copy-pass mode, copy stdin file list to directory DEST
diff --git a/toys/posix/ls.c b/toys/posix/ls.c
index d24168d6..287c3da6 100644
--- a/toys/posix/ls.c
+++ b/toys/posix/ls.c
@@ -20,7 +20,7 @@ config LS
   help
     usage: ls [-ACFHLRSZacdfhiklmnpqrstux1] [--color[=auto]] [directory...]
 
-    list files
+    List files.
 
     what to show:
     -a  all files including .hidden    -b  escape nongraphic chars
diff --git a/toys/posix/od.c b/toys/posix/od.c
index f45c8654..f0edcd76 100644
--- a/toys/posix/od.c
+++ b/toys/posix/od.c
@@ -13,6 +13,8 @@ config OD
   help
     usage: od [-bcdosxv] [-j #] [-N #] [-w #] [-A doxn] [-t acdfoux[#]]
 
+    Dump data in octal/hex.
+
     -A	Address base (decimal, octal, hexadecimal, none)
     -j	Skip this many bytes of input
     -N	Stop dumping after this many bytes
diff --git a/toys/posix/unlink.c b/toys/posix/unlink.c
index 4faef9dc..f5faab06 100644
--- a/toys/posix/unlink.c
+++ b/toys/posix/unlink.c
@@ -12,7 +12,7 @@ config UNLINK
   help
     usage: unlink FILE
 
-    Deletes one file.
+    Delete one file.
 */
 
 #include "toys.h"