mshow: rename from show

Makefile

@@ -1,13 +1,13 @@
 CFLAGS=-g -O1 -Wall -Wno-switch -Wextra -fstack-protector-strong -D_FORTIFY_SOURCE=2
 
-ALL = mscan mthread mhdr show list mseq msort
+ALL = mscan mthread mhdr mshow list mseq msort
 
 all: $(ALL)
 
 mscan: mscan.o blaze822.o seq.o rfc2047.o
 mthread: mthread.o blaze822.o seq.o
 mhdr: mhdr.o blaze822.o seq.o rfc2047.o
-show: show.o blaze822.o seq.o rfc2045.o rfc2047.c
+mshow: mshow.o blaze822.o seq.o rfc2045.o rfc2047.c
 list: list.o
 mseq: mseq.o seq.o
 msort: msort.o blaze822.o seq.o