man/man1/diffman-git.1: Add manual page

Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/man/man1/diffman-git.1 b/man/man1/diffman-git.1
new file mode 100644 (file)
index 0000000..e24e980
--- /dev/null
+++ b/man/man1/diffman-git.1
@@ -0,0 +1,68 @@
+.\" Copyright 2024, Alejandro Colomar <alx@kernel.org>
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.TH diffman\-git 1 (date) "Linux man-pages (unreleased)"
+.SH NAME
+diffman\-git
+\-
+compare changes to manual pages line by line
+.SH SYNOPSIS
+.SY diffman\-git
+.RI [ diff-options \~.\|.\|.\&]
+.RI [[ base-commit ]
+.IR commit ]
+.YS
+.SH DESCRIPTION
+The
+.B diffman\-git
+command
+formats a manual page at two
+.BR git (1)
+commits,
+and then runs
+.BR diff (1)
+on the formatted outputs.
+.P
+If the
+.I commit
+is not specified,
+it diffs the working directory against HEAD.
+.P
+If the
+.I base-commit
+is not specified,
+the comparison is done against the previous commit.
+.SH OPTIONS
+.TP
+.B \-s
+Report when two files are the same.
+.TP
+.BI \-U n
+output
+.I n
+(default 3)
+lines of unified context.
+.TP
+.B \-w
+Ignore all white space.
+.SH ENVIRONMENT
+See
+.BR man (1).
+.SH EXAMPLES
+.EX
+.RB $\~ "MAN_KEEP_FORMATTING= diffman\-git 437e4afec6ca | less \-R" ;
+\-\-\- 437e4afec6ca\[ha]:man/man3/sem_open.3
++++ 437e4afec6ca:man/man3/sem_open.3
+@@ \-14,3 +14,2 @@
+\-     sem_t *sem_open(const char *name, int oflag);
+\-     sem_t *sem_open(const char *name, int oflag,
+\-                     mode_t mode, unsigned int value);
++     sem_t *sem_open(const char *name, int oflag, ...
++                     /* mode_t mode, unsigned int value */ );
+.EE
+.SH SEE ALSO
+.BR diff (1),
+.BR man (1),
+.BR git (1),
+.BR less (1)