docs: spellfixes

Pointed by the new CI job

docs/mk-ca-bundle.1

@@ -24,33 +24,35 @@
 .\"
 .TH mk-ca-bundle 1 "24 Oct 2016" "version 1.27" "mk-ca-bundle manual"
 .SH NAME
-mk-ca-bundle \- convert mozilla's certdata.txt to PEM format
+mk-ca-bundle \- convert Mozilla's certificate bundle to PEM format
 .SH SYNOPSIS
 mk-ca-bundle [options]
 .I [outputfile]
 .SH DESCRIPTION
-The mk-ca-bundle tool downloads the certdata.txt file from Mozilla's source
-tree over HTTPS, then parses certdata.txt and extracts certificates into PEM
-format. By default, only CA root certificates trusted to issue SSL server
-authentication certificates are extracted. These are then processed with the
-OpenSSL commandline tool to produce the final ca-bundle file.
+The mk-ca-bundle tool downloads the \fIcertdata.txt\fP file from Mozilla's
+source tree over HTTPS, then parses \fIcertdata.txt\fP and extracts
+certificates into PEM format. By default, only CA root certificates trusted to
+issue SSL server authentication certificates are extracted. These are then
+processed with the OpenSSL command line tool to produce the final ca-bundle
+file.
 
 The default \fIoutputfile\fP name is \fBca-bundle.crt\fP. By setting it to '-'
 (a single dash) you will get the output sent to STDOUT instead of a file.
 
 The PEM format this scripts uses for output makes the result readily available
-for use by just about all OpenSSL or GnuTLS powered applications, such as
-curl, wget and more.
+for use by just about all OpenSSL or GnuTLS powered applications, such as curl
+and others.
 .SH OPTIONS
 The following options are supported:
 .IP -b
 backup an existing version of \fIoutputfilename\fP
 .IP "-d [name]"
-specify which Mozilla tree to pull certdata.txt from (or a custom URL). Valid
-names are: aurora, beta, central, mozilla, nss, release (default). They are
-shortcuts for which source tree to get the cert data from.
+specify which Mozilla tree to pull \fIcertdata.txt\fP from (or a custom
+URL). Valid names are: aurora, beta, central, Mozilla, nss, release
+(default). They are shortcuts for which source tree to get the certificates
+data from.
 .IP -f
-force rebuild even if certdata.txt is current (Added in version 1.17)
+force rebuild even if \fIcertdata.txt\fP is current (Added in version 1.17)
 .IP -i
 print version info about used modules
 .IP -k
@@ -58,33 +60,36 @@ Allow insecure data transfer. By default (since 1.27) this command will fail
 if the HTTPS transfer fails. This overrides that decision (and opens for
 man-in-the-middle attacks).
 .IP -l
-print license info about certdata.txt
+print license info about \fIcertdata.txt\fP
 .IP -m
 (Added in 1.26) Include meta data comments in the output. The meta data is
 specific information about each certificate that is stored in the original
 file as comments and using this option will make those comments get passed on
 to the output file. The meta data is not parsed in any way by mk-ca-bundle.
 .IP -n
-no download of certdata.txt (to use existing)
+no download of \fIcertdata.txt\fP (to use existing)
 .IP "-p [purposes]:[levels]"
-list of Mozilla trust purposes and levels for certificates to include in output.
-Takes the form of a comma separated list of purposes, a colon, and a comma
-separated list of levels. The default is to include all certificates trusted
-to issue SSL Server certificates (SERVER_AUTH:TRUSTED_DELEGATOR).
+list of Mozilla trust purposes and levels for certificates to include in
+output.  Takes the form of a comma separated list of purposes, a colon, and a
+comma separated list of levels. The default is to include all certificates
+trusted to issue SSL Server certificates
+(\fISERVER_AUTH:TRUSTED_DELEGATOR\fP).
 
 (Added in version 1.21, Perl only)
 
 Valid purposes are:
 .RS
-ALL, DIGITAL_SIGNATURE, NON_REPUDIATION, KEY_ENCIPHERMENT,
-DATA_ENCIPHERMENT, KEY_AGREEMENT, KEY_CERT_SIGN, CRL_SIGN,
-SERVER_AUTH (default), CLIENT_AUTH, CODE_SIGNING, EMAIL_PROTECTION,
-IPSEC_END_SYSTEM, IPSEC_TUNNEL, IPSEC_USER, TIME_STAMPING, STEP_UP_APPROVED
+\fIALL\fP, \fIDIGITAL_SIGNATURE\fP, \fINON_REPUDIATION\fP,
+\fIKEY_ENCIPHERMENT\fP, \fIDATA_ENCIPHERMENT\fP, \fIKEY_AGREEMENT\fP,
+\fIKEY_CERT_SIGN\fP, \fICRL_SIGN\fP, \fISERVER_AUTH\fP (default),
+\fICLIENT_AUTH\fP, \fICODE_SIGNING\fP, \fIEMAIL_PROTECTION\fP,
+\fIIPSEC_END_SYSTEM\fP, \fIIPSEC_TUNNEL\fP, \fIIPSEC_USER\fP,
+\fITIME_STAMPING\fP, \fISTEP_UP_APPROVED\fP
 .RE
 .IP
 Valid trust levels are:
 .RS
-ALL, TRUSTED_DELEGATOR (default), NOT_TRUSTED, MUST_VERIFY_TRUST, TRUSTED
+\fIALL\fP, \fITRUSTED_DELEGATOR\fP (default), \fINOT_TRUSTED\fP, \fIMUST_VERIFY_TRUST\fP, \fITRUSTED\fP
 .RE
 .IP -q
 be really quiet (no progress output at all)
@@ -101,21 +106,15 @@ Valid algorithms are:
 ALL, NONE, MD5 (default), SHA1, SHA256, SHA384, SHA512
 .RE
 .IP -u
-unlink (remove) certdata.txt after processing
+unlink (remove) \fIcertdata.txt\fP after processing
 .IP -v
-be verbose and print out processed CAs
+be verbose and print out processed certificate authorities
 .SH EXIT STATUS
 Returns 0 on success. Returns 1 if it fails to download data.
-.SH CERTDATA FORMAT
-The file format used by Mozilla for this trust information seems to be documented here:
+.SH FILE FORMAT
+The file format used by Mozilla for this trust information is documented here:
 .nf
 https://p11-glue.freedesktop.org/doc/storing-trust-policy/storing-trust-existing.html
 .fi
 .SH SEE ALSO
 .BR curl (1)
-.SH HISTORY
-\fBmk-ca-bundle\fP is a command line tool that is shipped as part of every
-curl and libcurl release (see https://curl.se/). It was originally based
-on the parse-certs script written by Roland Krikava and was later much
-improved by Guenter Knauf.  This manual page was initially written by Jan
-Schaumann \&<jschauma@netmeister.org>.